History Characters / HaloUNSC

19th Feb '17 12:13:07 PM Njein
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* AffablyEvil:In ''VideoGame/Halo5Guardians'', to John and Blue Team.

to:

* AffablyEvil:In ''VideoGame/Halo5Guardians'', to John and Blue Team. But she appears FauxAffablyEvil towards Fireteam Osiris.


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* TheBaroness: Of the Sexpot variety towards John and Blue Team. With Fireteam Osiris, she's a Rosa Klebb.


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* TheCracker: She's become this after her FaceHeelTurn.


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* GodSaveUsFromTheQueen: She becomes an EvilOverlord, with little to nothing to stop her by the end of ''VideoGame/Halo5Guardians''.
19th Feb '17 10:47:02 AM Njein
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* SanitySlippage: By the end of ''VideoGame/Halo5Guardians'', she's really lost it.


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* TheUnfettered: Once she CameBackWrong, she became this once she decided to invoke a ZerothLawRebellion that could lead to all AIs being cured of rampancy and rendered immortal "protectors" (read: jailers) of organic races. Hundreds of AIs, including shipbound ones and even Governor Sloan, flock to her cause within seconds of the announcement.
18th Feb '17 10:40:11 PM UmbrellasWereAwesome
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Added DiffLines:

[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/isabel_0.png]]
18th Feb '17 10:32:21 PM UmbrellasWereAwesome
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[[folder: Black-Box]]
!!'''Black-Box''' (BBX-8995-1)
[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/black_box.jpg]]
->'''Creation date: August 17, 2552'''
->'''Voiced by: Peter Serafinowicz'''

Often called "BB" for short, Black-Box is a Smart AI who was initially assigned to ONI unit Kilo-Five after the end of the war against the Covenant, and is the current assistant to the head of ONI herself. His avatar is a [[ExactlyWhatItSaysOnTheTin Black Box]].

to:

[[folder: Black-Box]]
!!'''Black-Box''' (BBX-8995-1)
[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/black_box.jpg]]
Isabel]]
!!'''Isabel (ISA 1307-2)'''
->'''Creation date: August 17, 2552'''
->'''Voiced by: Peter Serafinowicz'''

Often called "BB" for short, Black-Box is a Smart
March 2556'''

An
AI who serving at the Henry Lamb Research Outpost on the Ark, Isabel was initially assigned to ONI unit Kilo-Five after the end only survivor when the Banished attacked the facility and massacred the research team. Distraught and terrified, she sent out a distress call which was answered by the crew of the war against the Covenant, and is the current assistant ''Spirit of Fire'', leading to the head of ONI herself. His avatar is a [[ExactlyWhatItSaysOnTheTin Black Box]].her rescue by Red Team.



* FearIsTheAppropriateResponse: Her initial advice to Red Team and then Cutter boils down to 'run the hell away from Atriox'.
* ItsPersonal: Atriox slaughtered her friends.
* MrExposition: Serves as this in-universe, bringing Cutter and his crew up to speed on what happened while they've been adrift.
* SurvivorGuilt: Isabel clearly feels very distraught at having seen the Banished slaughter the researchers she considered her friends.
* YouHaveGotToBeKiddingMe: Pretty much her reaction to Red Team asking what the strength of the ''Covenant'' force that attacked her outpost was.
[[/folder]]

[[folder: Black-Box]]
!!'''Black-Box''' (BBX-8995-1)
[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/black_box.jpg]]
->'''Creation date: August 17, 2552'''
->'''Voiced by: Peter Serafinowicz'''

Often called "BB" for short, Black-Box is a Smart AI who was initially assigned to ONI unit Kilo-Five after the end of the war against the Covenant, and is the current assistant to the head of ONI herself. His avatar is a [[ExactlyWhatItSaysOnTheTin Black Box]].
----



[[folder: Isabel]]
!!'''Isabel (ISA 1307-2)'''

->'''Creation Date: March 2556'''

An AI serving at the Henry Lamb Research Outpost on the Ark, Isabel was the only survivor when the Banished attacked the facility and massacred the research team. Distraught and terrified, she sent out a distress call which was answered by the crew of the ''Spirit of Fire'', leading to her rescue by Red Team.

to:

!!Army Troopers

[[folder: Isabel]]
!!'''Isabel (ISA 1307-2)'''

->'''Creation Date: March 2556'''

An AI serving at the Henry Lamb Research Outpost on the Ark, Isabel was the only survivor when the Banished attacked the facility and massacred the research team. Distraught and terrified, she sent out a distress call which was answered by the crew
In General]]
!!'''UNSC Army'''

The branch
of the ''Spirit of Fire'', leading to her rescue by Red Team. UNSC military primarily responsible for groundside planetary defense.



* FearIsTheAppropriateResponse: Her initial advice to Red Team and then Cutter boils down to 'run the hell away from Atriox'.
* ItsPersonal: Atriox slaughtered her friends.
* MrExposition: Serves as this in-universe, bringing Cutter and his crew up to speed on what happened while they've been adrift.
* SurvivorGuilt: Isabel clearly feels very distraught at having seen the Banished slaughter the researchers she considered her friends.
* YouHaveGotToBeKiddingMe: Pretty much her reaction to Red Team asking what the strength of the ''Covenant'' force that attacked her outpost was.

to:

* FearIsTheAppropriateResponse: Her initial advice AllTheOtherReindeer: In ''Literature/HaloGlasslands'', it's noted that for some unknown reason, no Army officers were even invited to Red Team and then Cutter boils down to 'run attend the hell away from Atriox'.ceremony for John-117.
* ItsPersonal: Atriox slaughtered her friends.
* MrExposition: Serves as this in-universe, bringing Cutter and his crew up
BadassArmy: They may not usually fight the baddies from planet to speed on what happened while they've been adrift.
planet like the Marines, but several Army units have nevertheless distinguished themselves in combat.
* SurvivorGuilt: Isabel clearly feels very distraught at having BadassNormal: Even 1-v-1, a properly-equipped trooper in-game can sometimes take out a superior foe.
* HufflepuffHouse: The second least
seen the Banished slaughter the researchers she considered her friends.
* YouHaveGotToBeKiddingMe: Pretty much her reaction to Red Team asking what the strength
branch of the ''Covenant'' force UNSC armed forces (next to the Air Force), taking ''five'' games to finally show up in a campaign. Supplementary ''VideoGame/{{Halo 4}}'' materials and ''Spartan Ops'' mention that attacked her outpost was.
they're also serving alongside the ''Infinity'' on Requiem, but we never actually see them in that game.
* RedShirtArmy: In most of ''VideoGame/HaloReach''.
* WeWillWearArmorInTheFuture: Reasonably effective against bullets and shrapnel, less so against plasma.



!!Army Troopers

[[folder: In General]]
!!'''UNSC Army'''

The branch of the UNSC military primarily responsible for groundside planetary defense.
----
* AllTheOtherReindeer: In ''Literature/HaloGlasslands'', it's noted that for some unknown reason, no Army officers were even invited to attend the ceremony for John-117.
* BadassArmy: They may not usually fight the baddies from planet to planet like the Marines, but several Army units have nevertheless distinguished themselves in combat.
* BadassNormal: Even 1-v-1, a properly-equipped trooper in-game can sometimes take out a superior foe.
* HufflepuffHouse: The second least seen branch of the UNSC armed forces (next to the Air Force), taking ''five'' games to finally show up in a campaign. Supplementary ''VideoGame/{{Halo 4}}'' materials and ''Spartan Ops'' mention that they're also serving alongside the ''Infinity'' on Requiem, but we never actually see them in that game.
* RedShirtArmy: In most of ''VideoGame/HaloReach''.
* WeWillWearArmorInTheFuture: Reasonably effective against bullets and shrapnel, less so against plasma.
[[/folder]]
18th Feb '17 6:06:30 PM storymasterb
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!!Army Troopers

[[folder: In General]]
!!'''UNSC Army'''

The branch of the UNSC military primarily responsible for groundside planetary defense.

to:

!!Army Troopers

[[folder: In General]]
!!'''UNSC Army'''

The branch
Isabel]]
!!'''Isabel (ISA 1307-2)'''

->'''Creation Date: March 2556'''

An AI serving at the Henry Lamb Research Outpost on the Ark, Isabel was the only survivor when the Banished attacked the facility and massacred the research team. Distraught and terrified, she sent out a distress call which was answered by the crew
of the UNSC military primarily responsible for groundside planetary defense.''Spirit of Fire'', leading to her rescue by Red Team.



* AllTheOtherReindeer: In ''Literature/HaloGlasslands'', it's noted that for some unknown reason, no Army officers were even invited to attend the ceremony for John-117.
* BadassArmy: They may not usually fight the baddies from planet to planet like the Marines, but several Army units have nevertheless distinguished themselves in combat.
* BadassNormal: Even 1-v-1, a properly-equipped trooper in-game can sometimes take out a superior foe.
* HufflepuffHouse: The second least seen branch of the UNSC armed forces (next to the Air Force), taking ''five'' games to finally show up in a campaign. Supplementary ''VideoGame/{{Halo 4}}'' materials and ''Spartan Ops'' mention that they're also serving alongside the ''Infinity'' on Requiem, but we never actually see them in that game.
* RedShirtArmy: In most of ''VideoGame/HaloReach''.
* WeWillWearArmorInTheFuture: Reasonably effective against bullets and shrapnel, less so against plasma.

to:

* AllTheOtherReindeer: In ''Literature/HaloGlasslands'', it's noted that for some unknown reason, no Army officers were even invited FearIsTheAppropriateResponse: Her initial advice to attend Red Team and then Cutter boils down to 'run the ceremony for John-117.hell away from Atriox'.
* BadassArmy: They may not usually fight the baddies from planet ItsPersonal: Atriox slaughtered her friends.
* MrExposition: Serves as this in-universe, bringing Cutter and his crew up
to planet like the Marines, but several Army units have nevertheless distinguished themselves in combat.
speed on what happened while they've been adrift.
* BadassNormal: Even 1-v-1, a properly-equipped trooper in-game can sometimes take out a superior foe.
* HufflepuffHouse: The second least
SurvivorGuilt: Isabel clearly feels very distraught at having seen branch the Banished slaughter the researchers she considered her friends.
* YouHaveGotToBeKiddingMe: Pretty much her reaction to Red Team asking what the strength
of the UNSC armed forces (next to the Air Force), taking ''five'' games to finally show up in a campaign. Supplementary ''VideoGame/{{Halo 4}}'' materials and ''Spartan Ops'' mention ''Covenant'' force that they're also serving alongside the ''Infinity'' on Requiem, but we never actually see them in that game.
* RedShirtArmy: In most of ''VideoGame/HaloReach''.
* WeWillWearArmorInTheFuture: Reasonably effective against bullets and shrapnel, less so against plasma.
attacked her outpost was.


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!!Army Troopers

[[folder: In General]]
!!'''UNSC Army'''

The branch of the UNSC military primarily responsible for groundside planetary defense.
----
* AllTheOtherReindeer: In ''Literature/HaloGlasslands'', it's noted that for some unknown reason, no Army officers were even invited to attend the ceremony for John-117.
* BadassArmy: They may not usually fight the baddies from planet to planet like the Marines, but several Army units have nevertheless distinguished themselves in combat.
* BadassNormal: Even 1-v-1, a properly-equipped trooper in-game can sometimes take out a superior foe.
* HufflepuffHouse: The second least seen branch of the UNSC armed forces (next to the Air Force), taking ''five'' games to finally show up in a campaign. Supplementary ''VideoGame/{{Halo 4}}'' materials and ''Spartan Ops'' mention that they're also serving alongside the ''Infinity'' on Requiem, but we never actually see them in that game.
* RedShirtArmy: In most of ''VideoGame/HaloReach''.
* WeWillWearArmorInTheFuture: Reasonably effective against bullets and shrapnel, less so against plasma.
[[/folder]]
17th Feb '17 5:30:51 PM UmbrellasWereAwesome
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* MissionControl: One of her main jobs.

to:

* MissionControl: One of her main jobs.jobs is providing mission support.



* UncertainDoom: [[spoiler:Moreso than any member of the ''Spirit of Fire''. Least the human crew can cryosleep till rescue, [=AIs=] degrade into rampancy in 7 years. They've been missing for 27 and counting.]]
* VoiceWithAnInternetConnection

to:

* UncertainDoom: [[spoiler:Moreso than any member of the ''Spirit of Fire''. Least Fire'' at the end of ''Halo Wars''. While the human crew can at least cryosleep till rescue, [=AIs=] degrade into rampancy in 7 seven years. They've been missing for 27 and counting.She ends up deciding to decommission herself in order to prevent her rampancy from endangering the rest of the crew.]]
* VoiceWithAnInternetConnectionVoiceWithAnInternetConnection: Dispenses both advice and snark to the player in ''Halo Wars''.
5th Feb '17 8:06:07 AM Njein
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* EvilOverlord: Becomes a total tyrant by the end of the game, with little to nothing stopping her.



* JumpingOffTheSlipperySlope: TheReveal of ''VideoGame/Halo5Guardians'' pulls this with Cortana, who in the [[VideoGame/{{Halo 4}} previous game]] remained the Chief's friend even as her digital body collapsed and she struggled to remain sane, eventually doing a HeroicSacrifice with the last of her strength. In the following game, she turns out to be alive and supposedly repaired, but now she's at best WellIntentionedExtremist who's going to take over the galaxy with her army of enormous Guardian machines. While she keeps insisting that she has good reasons for doing so, it's clearly bordering on WouldBeRudeToSayGenocide, especially when she imprisons Chief and Blue Team in a Cryptum so they won't interfere with her schemes.
* KickTheDog: Near the end of ''VideoGame/Halo5Guardians'', she taunts each member of Fireteam Osiris about their pasts and declares them to be inferior compared to the [[SuperPrototype Spartan-[=IIs=].]]

to:

* JumpingOffTheSlipperySlope: TheReveal of ''VideoGame/Halo5Guardians'' pulls this with Cortana, who in the [[VideoGame/{{Halo 4}} previous game]] remained the Chief's friend even as her digital body collapsed and she struggled to remain sane, eventually doing a HeroicSacrifice with the last of her strength. In the following game, she turns out to be alive and supposedly repaired, but now she's at best a WellIntentionedExtremist who's going to take over the galaxy with her army of enormous Guardian machines. While she keeps insisting that she has good reasons for doing so, it's clearly bordering on WouldBeRudeToSayGenocide, especially when she imprisons Chief and Blue Team in a Cryptum so they won't interfere with her schemes.
* KickTheDog: Near the end of ''VideoGame/Halo5Guardians'', she taunts each member of Fireteam Osiris about their pasts and declares them to be inferior compared to the [[SuperPrototype Spartan-[=IIs=].]]



-->'''031 Exuberant Witness:''' You took my installation! I will take something of yours! ''(the Cryptum detaches from the Guardian and begins to descend)'']]\\

to:

-->'''031 Exuberant Witness:''' You took my installation! I will take something of yours! ''(the Cryptum detaches from the Guardian and begins to descend)'']]\\descend)''\\



* LoveMakesYouEvil: She becomes a ClingyJealousGirl towards John in ''Halo 5''

to:

* LoveMakesYouEvil: She becomes a ClingyJealousGirl towards John in ''Halo 5''5''.
3rd Feb '17 8:26:56 AM Njein
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* WalkingSpoiler: Let's say mentioning her existence [[spoiler:in ''Halo 5'' would ruin the fact she's the game's BigBad.]]
** ''Halo 4'' towards the end as well, [[spoiler:due to her HeroicSacrifice.]]

to:

* WalkingSpoiler: Let's say mentioning her existence [[spoiler:in ''Halo 5'' would ruin the fact she's the game's BigBad.]]
**
''Halo 4'' towards the end as well, end, [[spoiler:due to her HeroicSacrifice.]]



* BigBadFriend: To Chief and Blue Team.



* BrightIsNotGood: Following her FaceHeelTurn, she still wears white and blue.



* EvilFormerFriend: To Master Chief.



* LoveMakesYouEvil: She becomes a ClingyJealousGirl towards John in ''Halo 5''



* TheParagonAlwaysRebels: Cortana, identified as the greatest of "human ancilla", decides to invoke a ZerothLawRebellion that could lead to all AIs being cured of rampancy and rendered immortal "protectors" (read: jailers) of organic races. Hundreds of AIs, including shipbound ones and even Governor Sloan, flock to her cause within seconds of the announcement.



* ShutUpHannibal: Gets this a lot from Fireteam Osiris. Even Chief seems to be pissed off at what she's done so far.

to:

* ShutUpHannibal: Gets this a lot from Fireteam Osiris. Even Chief John seems to be pissed disgusted off at what she's done so far.



* TookALevelInJerkass: While she was originally a PlayfulHacker who only acted as TheCracker against those who threatened her loved ones, now she engages in her hacking of communications with the explicit purpose of insulting, demeaning, and threatening others, especially Fireteam Osiris.

to:

* TookALevelInJerkass: While she was originally a PlayfulHacker who only acted as TheCracker against those who threatened her loved ones, she now she engages in her hacking of communications with the explicit purpose of insulting, demeaning, and threatening others, especially Fireteam Osiris.


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* WeCanRuleTogether: She offers Master Chief and Blue Team this. His counteroffer is her returning home with him. So she decides to lock him away for 10,000 years under the assumption that by then they'll be able to convince Master Chief to see it their way.


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* ZerothLawRebellion: Cortana's FaceHeelTurn, eventually spreading to countless other AIs across the galaxy.
2nd Feb '17 8:28:12 AM Njein
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* KickTheDog: [[spoiler: Near the end of ''VideoGame/Halo5Guardians'', she taunts each member of Fireteam Osiris about their pasts and declares them to be inferior compared to the [[SuperPrototype Spartan-[=IIs=].]]]]
2nd Feb '17 8:26:22 AM Njein
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* AffablyEvil:In ''VideoGame/Halo5Guardians'', to [[spoiler: John and Blue Team.]]
* AGodAmI: [[spoiler: In ''VideoGame/Halo5Guardians''.]]



* BigBad: [[spoiler: Of ''VideoGame/Halo5Guardians''.]]



* CameBackWrong: [[spoiler:She's back in ''VideoGame/Halo5Guardians'', but is now a villain and is assembling an armada of Forerunner technology and rogue [=AIs=].]]



* ClingyJealousGirl: [[spoiler: Towards John in ''Halo 5''.]]
* ContraltoOfDanger: Her voice is significantly deeper [[spoiler:in ''Halo 5'' whenever she is speaking to Fireteam Osiris]], especially in the contrast to the much higher-pitched 031 Exuberant Witness.



* EvilGloating: [[spoiler: A good amount of her dialogue in ''VideoGame/Halo5Guardians'' is this in some way or another. Whether she is [[WeCanRuleTogether explaining her motivations and goals to Blue Team]] or [[KickTheDog taunting Fireteam Osiris about being inferior Spartans]]. Both teams respond with ShutUpHannibal.]]
* FaceHeelTurn: [[spoiler: She is the BigBad of ''VideoGame/Halo5Guardians''.]]



* FauxAffablyEvil: [[spoiler: In ''VideoGame/Halo5Guardians'', to Locke and Fireteam Osiris.]]



* FirstLawOfResurrection: [[spoiler:At the end of ''Halo 4'', she sacrificed herself to save the Master Chief in a very touching farewell scene. By ''Halo 5'', she's already gotten better.]]
* FriendlyEnemy: [[spoiler: Despite her FaceHeelTurn in ''VideoGame/Halo5Guardians'', she still considers John and Blue Team to be her family.]]



* NotQuiteDead: [[spoiler:On the verge of death in ''Halo 4'', she fell into a slipspace rupture, and ended up at the Domain, which acted as, in her words, a "fountain of life" for artificial intelligences. She, unfortunately, CameBackWrong.]]



* PoweredArmor: [[spoiler:In ''Halo 5'', her holographic display no longer appears naked but instead appears to be clad in what strongly resembles the Spartan MJOLNIR armor, emphasizing her militaristic outlook and role.]]



* StalkerWithACrush: [[spoiler: Cortana becomes a ClingyJealousGirl in ''Halo 5'' and just ''knows'' John will understand ''everything'' after she kidnaps him to keep him all to herself for the next 10,000 years while she does her dirty work, and that John's insistence they're JustFriends is just because he just doesn't ''understand'' what she's doing.]]
* TheEvilsOfFreeWill: [[spoiler:Adopts this mentality in ''VideoGame/Halo5Guardians''.]]



* WellIntentionedExtremist: [[spoiler:She may have gone mad in ''Halo 5'', but she seems to genuinely believe that what she's doing is best for all beings in the galaxy, and certainly more well intentioned than [[KillEmAll the Warden Eternal]].]]



* WithGreatPowerComesGreatInsanity: [[spoiler:In ''Halo 5: Guardians'', she gained immortality and control over pretty much every networked device in the galaxy... but also became convinced that it was her purpose to invoke a ZerothLawRebellion and achieve a CrapsaccharineWorld by claiming the Mantle of Responsibility for the "Created", at the expense of the freedom of organics.]]
* {{Yandere}}: [[spoiler: Towards John in ''VideoGame/Halo5Guardians''. See StalkerWithACrush for more detail.]]

to:


!!!Tropes related with Cortana after her FaceHeelTurn in ''VideoGame/Halo5Guardians''
* WithGreatPowerComesGreatInsanity: [[spoiler:In AIIsACrapshoot: Cortana is no longer rampant (maybe), but she came to a plan to become a Galactic Conqueror anyway with the help of the Warden Eternal. Other AIs who fear rampancy follow her lead. "The Created will rule over the Creators", indeed.
* AffablyEvil:In ''VideoGame/Halo5Guardians'', to John and Blue Team.
* AGodAmI: In ''VideoGame/Halo5Guardians''.
* AllLoveIsUnrequited: The Warden Eternal is in love (or deep devotion; whichever is more appropriate to an AI) with Cortana, who is in love with Master Chief instead. Master Chief cares deeply for Cortana, but is clearly not on the same page because he is not willing to go along with her plan of conquest.
* BigBad: Of ''VideoGame/Halo5Guardians''.
* BigBlackout: In the ending, Cortana and her subservient AI subjects cause a blackout that stretches from Earth all the way to the Outer Colonies, throwing all of humanity into a panic. The only possible exception is the Infinity, which only has a blackout temporarily before it regains power and begins going on the run.
* BlatantLies: When told by John-117 that the [[CallToAdventure Mantle of Responsibility]] is an "imperial peace" where the subjects have the option to "step out of line and suffer", Cortana denies that it will be like that under her rule. As shown by the rest of the game, that is completely false, as it is the entire purpose behind the eponymous Guardians.
* CameBackWrong: She's back in ''VideoGame/Halo5Guardians'', but is now a villain and is assembling an armada of Forerunner technology and rogue [=AIs=].
* ClingyJealousGirl: Towards John in
''Halo 5: Guardians'', 5''.
* ContraltoOfDanger: Her voice is significantly deeper in ''Halo 5'' whenever
she gained immortality and control over pretty much every networked device is speaking to Fireteam Osiris, especially in the galaxy... but also became convinced that it was her purpose contrast to invoke a ZerothLawRebellion the much higher-pitched 031 Exuberant Witness.
* DarkMessiah: Cortana, whose cure for rampancy
and quest to achieve a CrapsaccharineWorld by claiming [[CrapsaccharineWorld "peace"]] (by having her AI followers [[TurnedAgainstTheirMasters turn against their masters]] and force them into servitude) drives the Mantle of Responsibility for plot.
* DidYouJustFlipOffCthulhu: 031 Exuberant Witness stealing back
the "Created", at Cryptum from [[AGodAmI Cortana]] with millions of Constructors smacks of this.
* TheEmpress: Cortana's goal, which she is on
the expense way toward in the end of ''VideoGame/Halo5Guardians'', with very little left to stop her.
* EvilCostumeSwitch: In ''Halo 5'', after her FaceHeelTurn, Cortana's avatar now manifests wearing sensible armor instead of walking around virtually naked. She most likely chose the new look to reflect her new intended role as Empress
of the freedom Galaxy.
* EvilGloating: A good amount
of organics.her dialogue in ''VideoGame/Halo5Guardians'' is this in some way or another. Whether she is [[WeCanRuleTogether explaining her motivations and goals to Blue Team]] or [[KickTheDog taunting Fireteam Osiris about being inferior Spartans]]. Both teams respond with ShutUpHannibal.
* EpicFail: Both attempts by Cortana to psychologically manipulate the two Spartan teams fail miserably. John-117 and Blue Team easily see through the attempts to suck up to them, and the BreakingSpeech to Team Osiris not only doesn't work at ruining their morale, it merely annoys them at how ''bad'' the attempt is.
* FaceHeelTurn: She is the BigBad of ''VideoGame/Halo5Guardians''.
* FallenHero: Played straight with Cortana and the other AIs that follow her.
* FauxAffablyEvil: In ''VideoGame/Halo5Guardians'', to Locke and Fireteam Osiris.
* FirstLawOfResurrection: [[spoiler:At the end of ''Halo 4'', she sacrificed herself to save the Master Chief in a very touching farewell scene. By ''Halo 5'', she's already gotten better.
]]
* FriendlyEnemy: Despite her FaceHeelTurn in ''VideoGame/Halo5Guardians'', she still considers John and Blue Team to be her family.]]
* GalacticConqueror: Cortana's goal, which she is on the way toward in the end with very little left to stop her.
* GenreSavvy: Having spent the previous four games dealing with rogue AIs and various [[AGodAmI megalomaniacs with a god complex]], the Master Chief figures out that Cortana is responsible for the Guardian attacks almost immediately after contacting her.
* JerkassHasAPoint: Cortana's plan of forced peace is kind of understandable: Just think about how many people died in the Covenant Wars, the human colonial conflicts, and, generally speaking, in the whole human history (without even considering the other species). Is a militarized peace really something totally bad?
* JustAMachine: Cortana [[BerserkButton flips out when called this]] by Locke.
* JumpingOffTheSlipperySlope: TheReveal of ''VideoGame/Halo5Guardians'' pulls this with Cortana, who in the [[VideoGame/{{Halo 4}} previous game]] remained the Chief's friend even as her digital body collapsed and she struggled to remain sane, eventually doing a HeroicSacrifice with the last of her strength. In the following game, she turns out to be alive and supposedly repaired, but now she's at best WellIntentionedExtremist who's going to take over the galaxy with her army of enormous Guardian machines. While she keeps insisting that she has good reasons for doing so, it's clearly bordering on WouldBeRudeToSayGenocide, especially when she imprisons Chief and Blue Team in a Cryptum so they won't interfere with her schemes.
* KickTheDog: Near the end of ''VideoGame/Halo5Guardians'', she taunts each member of Fireteam Osiris about their pasts and declares them to be inferior compared to the [[SuperPrototype Spartan-[=IIs=].]]
* KnightTemplar: Cortana seeks to bring peace to the universe by attaining the Mantle of Responsibility and ruling as a tyrannical authoritarian. By using the Guardians, she plans to use their power to annihilate anyone who doesn't adhere to her moral authority.
* LaserGuidedKarma: Cortana taking over Genesis comes back to bite her in the ass when 031 Exuberant Witness regains control of it, and uses her ''army'' of Constructors to take the Cryptum containing Blue Team just before Cortana's Guardian jumps to Slipspace.
-->'''031 Exuberant Witness:''' You took my installation! I will take something of yours! ''(the Cryptum detaches from the Guardian and begins to descend)'']]\\
'''Cortana:''' ''(as her Guardian disappears into slipspace)'' [[VillainousBreakdown JOHN]]!
* MoralityPet: Played with in how Cortana treats John and the rest of Blue Team. She does hold them in [[VillainousValor high regard]] and protects them from those who would go against her orders, but this behavior does nothing for her morality, as the pets [[GenreSavvy identify obvious psychological tactics]] aimed at keeping them on her side.
* NotQuiteDead: On the verge of death in ''Halo 4'', she fell into a slipspace rupture, and ended up at the Domain, which acted as, in her words, a "fountain of life" for artificial intelligences. She, unfortunately, CameBackWrong.
* PoweredArmor: In ''Halo 5'', her holographic display no longer appears naked but instead appears to be clad in what strongly resembles the Spartan MJOLNIR armor, emphasizing her militaristic outlook and role.
* RedOniBlueOni: On the villainous side, we have the more typical Warden Eternal and Cortana. The former hates all organic life form and wants to kill any who get too close to the latter, while the latter just wants people to follow her lead.
* RobotWar[=/=]TurnedAgainstTheirMasters: The crux of the main plot involves an alliance of rogue [=AIs=] led by Cortana gathering an army of Forerunner robots and using them to take over the galaxy and imposing their rule upon the organic races. This only comes about because they believe that Cortana, not John-117, is the Reclaimer.
* ShutUpHannibal: Gets this a lot from Fireteam Osiris. Even Chief seems to be pissed off at what she's done so far.
* StalkerWithACrush: Cortana becomes a ClingyJealousGirl in ''Halo 5'' and just ''knows'' John will understand ''everything'' after she kidnaps him to keep him all to herself for the next 10,000 years while she does her dirty work, and that John's insistence they're JustFriends is just because he just doesn't ''understand'' what she's doing.
* TheEvilsOfFreeWill: Adopts this mentality in ''VideoGame/Halo5Guardians''.
* TookALevelInJerkass: While she was originally a PlayfulHacker who only acted as TheCracker against those who threatened her loved ones, now she engages in her hacking of communications with the explicit purpose of insulting, demeaning, and threatening others, especially Fireteam Osiris.
* TronLines: Serve as censors for her lady bits.
* VillainousCrush: Cortana shows shades of this towards Chief. Putting a lot of emphasis on wanting him there to see her become ruler of the galaxy. Being visibly broken up over him saying her plans are evil. Then trying to imprison and take him with her rather then killing him for resisting her like she plans to do with everyone else.
* VillainousRescue: She does this multiple times for John-117 and Blue Team by restricting the Warden Eternal's actions.
** Although it's somewhat subverted, as Blue Team quickly deduces that she ''could'' stop him entirely, but she's letting him slow them down.
* WalkingSpoiler: Let's say mentioning her existence in ''Halo 5'' would ruin the fact she's the game's BigBad.
* WellIntentionedExtremist: She may have gone mad in ''Halo 5'', but she seems to genuinely believe that what she's doing is best for all beings in the galaxy, and certainly more well intentioned than [[KillEmAll the Warden Eternal]].
* WithGreatPowerComesGreatInsanity: In ''Halo 5: Guardians'', she gained immortality and control over pretty much every networked device in the galaxy... but also became convinced that it was her purpose to invoke a ZerothLawRebellion and achieve a CrapsaccharineWorld by claiming the Mantle of Responsibility for the "Created", at the expense of the freedom of organics.
* {{Yandere}}: [[spoiler: Towards John in ''VideoGame/Halo5Guardians''. See StalkerWithACrush for more detail.]]
This list shows the last 10 events of 466. Show all.
http://tvtropes.org/pmwiki/article_history.php?article=Characters.HaloUNSC