History VideoGame / Halo5Guardians

** Elites have been improved compared to ''Halo 4'', where they had been {{Nerf}}ed compared to the original Bungie games. Besides being more nimble and responsive in combat, higher-ranking Elites such as Warriors (gold armor) and Zealots (purple armor) have stronger shields (nearly twice as strong as those on regular Elites), whereas in ''Halo 4'' their durability wasn't much higher than regular Storm Elites.

** Elites have been improved compared to ''Halo 4''. Besides being more nimble and responsive in combat, higher-ranking Elites such as Warriors (gold armor) and Zealots (purple armor) have stronger shields (nearly twice as strong as those on regular Elites), whereas in ''Halo 4'' their durability wasn't much higher than regular Storm Elites.

* BalanceBuff: The Promethean weapons have had a number of functionality adjustments to make them more viable and distinguish them from UNSC and Covenant weaponry. Most notably, the suppressor is no longer a submachine gun with bullet spread so massive it has the functional range of a shotgun, but rather is a more normal automatic weapon that fires semi-homing projectiles.

!Spoilers for ''all'' ''Franchise/{{Halo}}'' works preceding this one will be left unmarked. Administrivia/YouHaveBeenWarned!

!Spoilers for ''all'' ''Franchise/{{Halo}}'' games preceding this one will be left unmarked. Administrivia/YouHaveBeenWarned!

* HonorBeforeReason: After thousands of years of being manipulated and suffering thanks to their strict adherence to tradition, a few Sangheili have started to question the utility of their rigid systems of "honor." In an audio log, [[KlingonScientistsGetsNoRespect one Sangheili who has become a medic]] laments their ideal of "blood shed outside battle is dishonorable", having witnessed his brothers die from refusing to treat eventually-fatal wounds through surgery. He eventually takes to sedating and treating his injured brothers anyway, because ''[[ScrewTheRulesImDoingWhatsRight "if compassion brings dishonor, then so be it."]]''

* HonorBeforeReason: After thousands of years of being manipulated and suffering thanks to their strict adherence to tradition, a few Sangheili have started to question the utility of their rigid systems of "honor." In an audio log, [[KlingonScientistGetsNoRespect one Sangheili who has become a medic]] laments their ideal of "blood shed outside battle is dishonorable", having witnessed his brothers die from refusing to treat eventually-fatal wounds through surgery. He eventually takes to sedating and treating his injured brothers anyway, because ''[[ScrewTheRulesImDoingWhatsRight "if compassion brings dishonor, then so be it."]]''

* HonorBeforeReason: After thousands of years of being manipulated and suffering thanks to their strict adherence to tradition, a few Sangheili have started to question the utility of their rigid systems of "honor." In an audio log, one Sangheili who has become a medic laments their ideal of "blood shed outside battle is dishonorable", having witnessed his brothers die from refusing to treat eventually-fatal wounds through surgery. He eventually takes to sedating and treating his injured brothers anyway, because "if compassion brings dishonor, then so be it."

* CriticalResearchFailure: An InUniverse and utterly hilarious demonstration can be found in a Mission 11 audio log, from the perspective of an Unggoy "researching" human life cycles. Apparently having witnessed the [[VideoGame/HaloReach one-armed human female Kat]] and also seeing the one-armed Halsey, the Grunt concludes that human women lose appendages as they age, and predicts that Halsey will soon release her spores and then start weaving a nest of meat-silk.

** [[spoiler:Cortana turning into a misanthropic, megalomaniacal villain who sees humans as sheep to guard and put down neatly echoes the pre-Halo 1 Cortana Letters, wherein Cortana was far more of a villain who saw nothing good in humanity and questions why the Master Chief keeps fighting for them.]]

* MythologyGag: Fireteam Osiris has a lot of red and orange imagery and is hunting down Master Chief's Blue Team. So the game is ''WebAnimation/RedVsBlue''.

* WeaponOfChoice: Each Spartan has a different pair of weapons which they will start each mission with.

* MythologyGag: Fireteam Osiris has a lot of red and orange imagery and is hunting down Master Chief's Blue Team. So the game is WebAnimation/RedVsBlue.

* MythologyGag: Fireteam Osiris has a lot of red and orange imagery and is hunting down Master Chief's Blue Team. So the game is Machinima/RedVsBlue.

* TheRemnant: Taken UpToEleven. Jul 'Mdama's Covenant were already a mere remnant of the original Covenant back in ''Halo 4'', but even after suffering the betrayal of their Promethean allies, the irreversible fracturing of their fleets, and the death of Jul himself, they still fight on in their last stronghold on Sanghelios. Even after [[spoiler:the Covenant's last holdouts are decisively defeated, those remnants of the remnants of Jul's remnant who are pulled to Genesis by the Guardians' slipspace jumps continue to fight against any foes they can find, despite many of them realizing that their cause is lost]].