[[http://www.fanfiction.net/s/6903189/1/When_There_Was_a_Tomorrow When There Was a Tomorrow]] is a Franchise/{{Halo}}/Franchise/MassEffect crossover by General Rage. Set after the events of ''VideoGame/MassEffect2'' and its subsequent ''Lair of the Shadow Broker'' arc, it begins with Team Normandy doing recon of a wormhole in search of a possible [[EldritchAbomination Reaper]] threat. The Paragon Commander Wade Shepard (Vanguard, Spacer background, Hero of Elyssium) deals with tensions among his crew (and his current relationship with Tali) at first, only to [[GiantSpaceFleaFromNowhere come under abrupt attack from an (unbeknownst to them) Covenant warship]] during their observation.

After repelling boarders and destroying the ship from within, another Covenant warship ends up chasing them through the wormhole...and into an AlternateUniverse where another humanity's first contact with alien species didn't go so well (well, not that it went well in the Franchise/MassEffect universe). After making some serious diplomatic efforts to assure some local naval assets they mean no harm, the Normandy is towed to the fortress world of Reach, and as a show of good will, Shepard offers to assist with a downed communications relay to prove that his alien crew our on the level...only for [[HaloReach things to go south]].
Simply put, this story is a rather well thought out WhatIf scenario dealing with the differences between Franchise/MassEffect and Halo's technology, provides more than a few [[ValuesDissonance interesting]] [[VitriolicBestBuds interactions]] between the relatively xenophobic humans of the Halo universe and the Normandy Crew, and Shepard struggling to deal with TheChainsOfCommanding as he's thrust out of one apocalypse in the making and into another, not to mention some of the best written battle sequences since FanFic/FinishingTheFight.

As of July 31 2012, the story is complete. The author has stated his plans to make it into a series (now titled ''The Wormhole Chronicles'') with this book as the first, and posted the first chapter of [[VideoGame/HaloCombatEvolved the next book]], Fanfic/GuiltySparks, the day before VideoGame/{{Halo 4}} was released.

[[WMG: This fanfic contains examples of:]]

* ActionBomb: Gremlins (Grunt Husks), unlike their un-Huskified fellows, need no longer rely on plasma grenades to suicidally blow away their foes.
* AIIsACrapShoot: Despite just getting comfortable with EDI and Legion, Tali is apprehensive at the sheer pervasiveness of AI use in the Halo universe, and is happy to share her objections where appropriate.
** A more straightforward use of this trope would be the Covenant AI that EDI fights in the first chapters.
* ArbitrarySkepticism: Because of this trope, the Normandy crew tries to keep quiet about the whole "Reaper" business, since they assumed UNSC Command would think them as crazy. After Reapers are revealed to be involved, the crew is suprised that the Halo soldiers accept their information verbatim.
* AndThatWouldBeWrong: Kasumi starts talking about how certain types of parties have the best stuff to steal... before remembering that she's talking to [[KnightTemplar Samara the Justicar,]] and immediately follows up with:
-->'''Kasumi:'''"I mean, I wouldn't steal anything… not as they didn't deserve it of course. Cause stealing from innocents is unjust and, wrong and icky."
* BadassMustache: This incarnation of Shepard has one.
* BerserkButton: Zaeed's button is pressed to the breaking point when he sees a Jackal eyeing up his old gun.
* BladeBelowTheShoulder: Reavers (Elite Husks) have plasma-sword blades extending from their wrists and/or palms.
* BloodKnight: Kreave, who has taken a contract with the Covenant to enjoy a large scale war...and [[TheOnlyOneAllowedToDefeatYou kill Shepard]].
* BondVillainStupidity: [[spoiler: The Inquisitor is quick to reveal his plans to Shepard, consisting of massing a Covenant Armada on Reach, then creating a wormhole back to the Mass Effect Universe to use as a vanguard (similar to the geth) to the Reaper invasion.]] [[AvertedTrope However]], it's worth noting that [[spoiler: The Inquisitor]] only confirmed what Shepard already knew or otherwise could have guessed from the data Legion gave him.
** That, and [[spoiler: a conversation between The Inquisitor and Harbinger at the end of the story reveals The Inquisitor was lying about its long term plans for The Covenant]].
* BookEnds: Lampshaded by Admiral Gravelston [[spoiler: when he [[HeroicSacrifice prepares to ram a Covenant assault carrier]] to help Shepard escape the Portal site]].
-->'''Gravelston''': [[spoiler: "I brought you to Reach, least I can do is help you get off it."]]
* BowelBreakingBricks: Upon seeing the Covenant Supercarrier:
--> '''Joker''': "EDI... I now have bricks in my pants."
* TheChainsOfCommanding: In addition to the CosmicHorrorStory back home, being lost in an AlternateUniverse, his crew starting to bicker with each other again, and his straining relationship with Tali, Shepard is under a lot of stress right now.
** Shepard and Carter have a touching conversation about this in New Alexandria, and it helps break Shepard out of his HeroicBSOD.
* CoolShip: The Normandy was this to begin with, but compared to Halo's technology, is this compared even to local ships. Nonetheless, Shepard starts requisitioning a slipspace drive and other goodies to make it ''even cooler.''
** As of Chapter 10, it's paid off. Joker and EDI have used their new weapons to utterly decimate Covenant Wraith and anti-air formations.
* CountryMatters: Miranda ([[SophisticatedAsHell of all people]]) calls Jack ([[ClusterFBomb of all people]]) this while they try to quickly resolve their mutual resentment in Chapter 16.
-->'''Jack''': [[SarcasmMode "Oh so you can swear."]]
* DistractedByTheSexy: In chapter 5, Garrus figures that the reason why Emile seems less angry about being paired with two aliens is either because Emile respects Garrus more, or because Samara's outfit has a V-neck. A little more literal example is a few scenes later, when the three are ambushed by a lone grunt while Emile is commenting that she looks good for her age.
* EvenEvilHasStandards: Jack, a homicidal girl with a HairTriggerTemper and utter contempt for almost everyone, is ''nauseated'' [[spoiler: by a video on [[IAmAHumanitarian Brute eating habits]].]]
* ExactWords: Samara promised to free an Unggoy from pain after the interrogation... and when Emile kills the unggoy, she admits that she was about to do the same.
* {{Fanboy}}: Kreave is as much as a Krogan can be in regards to Shepard. Unfortunately, this manifests as wanting to best and kill him in single combat. Case in point: when he learned Shepard was on Reach, he dedicated every moment to finding the Commander, and even trained his own [[MagicKnight Krogan Vanguards]] to emulate Shepard's fighting style.
** Many UNSC Marines were rather endeared towards Samara.
* FantasticRacism: The humans of the UNSC in general and the Spartans of Noble Team in particular are initially very leery of the aliens on the Normandy crew (save Jorge). Carter and Kat get snapped out of it when ''Legion'' pretty bluntly points out how illogical the whole thing is, pointing to how the UNSC is willing to trust AI.
** It's somewhat justified, and the text explains this, because the only aliens that UNSC humans have encountered (before the Normandy showed up) have tried to drive their species to extinction and burn their worlds to glass. Called back in the sequel when one of the posters in the ''Pillar Of Autumn'' has pictures of the non-human members of Shepard's crew with the title "Don't shoot these."
* FireForgedFriends: Noble 6 and Legion, surprisingly.
** Private Kowalski and Samara seem to keep running into one another.
* ForWantOfANail: Grunt [[spoiler: Takes a Needler Rifle round meant for Kat's head, saving her from her canon death]].
** [[InSpiteOfANail The same cannot be said]] for [[spoiler: Jorge]].
* TheGhost: It took almost a dozen chapters before the BigBad [[spoiler: A Reaper called The Inquisitor]] was even named. It has yet to speak or make a physical appearance in the story as of Chapter 14, though it has been the subject of multiple conversations since its first mention.
** It finally appears in Chapter 18 [[spoiler: and it's not in very good shape]].
* GunsAkimbo: The first Hunter husks encountered, one having two assault cannons and the other having two shields modified with gravity hammers installed in them.
* HamToHamCombat: When Kreave, piloting a [[CoolPlane Vampire]] fights Shepard, who is on foot, all of their dialogue is a continuous stream of [[BadassBoast Badass Boasts]], [[HannibalLecture Hannibal Lectures]], [[TheReasonYouSuckSpeech talking each other down]] and [[ShutUpHannibal and telling each other where to stick it]].
* HeroicBSOD: While recovering in the medbay from getting curb-stomped by a Hunter, Grunt realizes how much his arrogance has embarrassed himself and Shepard. He doesn't take it well when Shepard insists his injuries were punishment enough and demands worse. He eventually concedes to Shepard refusing to take him along on missions for the next few days.
** Shepard is described as not being "in a commanding mood" in Chapter 18 after [[spoiler: Tali's apparent death]].
* HeroicSacrifice: Lieutenant Colonel Jensen gives up his Gauss Warthog to Kowalski and his squad in order to stay behind in their totaled warthog, manning the machine gun in order to hold off incoming Covenant so the others can escape to the Autumn.
* HoistByHisOwnPetard: Inverted with The Inquisitor's portal device [[spoiler: Shepard uses the unstable biotic energies of its host body to turn it into an improvised bomb, destroying both its avatar and the device's reactor]].
* HopeSpot: The possibility for [[spoiler: Jorge surviving Operation: Uppercut]] is set up by virtue of Legion joining in on it. [[spoiler: He still dies]]. It's just as [[TearJerker tragic]] as it sounds.
* IDidWhatIHadToDo: Dr. Halsey says as much to Shepard when explaining [[spoiler: The Spartan-II's recruitment process.]] The Normandy Crew have differing opinions on whether it was the right thing.
** Mordin and [[spoiler: The Master Chief]] personally assure her that she did.
** Tali is of mixed feelings. On one hand, her upbringing as part of a very tight-knit community thinks it's reprehensible, while on the other, she spent a lot of time with Halsey and even has her diary, which shows what Halsey really thought.
* IfIWantedYouDead: Jack comments that if she left the team, Samara would kill her. Samara quickly corrects her, saying that if it wasn't for the oath she swore to Shepard, Jack would have been dead ''months'' ago.
* InsistentTerminology: In the first two chapters, characters are ''[[RunningGag always]]'' quick to remind other characters that wormholes "pull," not "suck."
* InSpiteOfANail: The Shepard crew's presence does nothing to [[spoiler:prevent Jorge and Carter from dying, nor does it make any difference on whether Reach falls]].
* IronicEcho: With Shepard at his mercy, [[spoiler: Inquisitor-possessed Xytas]] tells the Commander "You fought somewhat proficiently, but it was futile...This outcome was never in doubt." Shepard throws those words back in his face [[spoiler: When he turns the Inquisitor's form into an improvised bomb to destroy the portal device]].
* JerkAss: Colonel Ackerson is in top form here.
* NonActionBigBad: The Inquisitor, [[spoiler: since attempting to return to the [=ME=]-verse left it heavily damaged enough that even a few UNSC frigates could finish it off.]]
** Despite the damage, while never confronting the heroes personally, lands on Reach to decimate Reach's groundside defenses.
* NoNameGiven: Noble Six is still Noble Six, and prefers it that way.
* [[spoiler: NotBrainwashed]]: [[spoiler: The Inquisitor]] boasts that it did not require [[spoiler: [[BrainwashedAndCrazy Indoctrination]] to bend [[ScaryDogmaticAliens The Covenant's leadership]] to its will]].
* NoSell: Jack and the other team biotics run into this when they attempt to biotically throw a hunter. It's not that they have some sort of device that makes them immune to being tossed, it's that they're so massive and heavy that they ''can't'' be thrown biotically (without massive effort, that is.)
* NotSoDifferent: Shepard and his crew can't help but see an uncomfortable number of parallels between The Illusive Man and Dr. Halsey, and several of his teammates seem to be losing respect for him for siding with her, maintaining loyalty only because Shepard thinks she's their only ticket home.
** On a more positive note, Halsey and Mordin. Both are achieved scientists grateful to be acquainted with somebody who can actually follow them in a conversation. They even participate in some friendly scientific banter during their interactions.
** Shepard notes that the Hunters, being hive-minded worms working together with hundreds of them in one body, aren't too dissimilar from how the Geth operate.
* OneWingedAngel: [[spoiler: Xytas, once his Reaper implants are activated]].
* TheOnlyOneAllowedToDefeatYou: Kreave holds this mentality regarding Shepard. So much that he's attacked Sword Base not for the chance to recover the artifact underneath it, but to get the chance to capture Shepard and face him one-on-one.
** Xytas is similarly zealous about slaying "The False Shepard," and once The Inquisitor [[spoiler: activates his Reaper implants]], he and Kreave briefly butt heads over the privilege during a firefight with him.
* OhCrap: Everyone's reaction to finding out [[spoiler: that the Covenant have inexplicably acquired Mass Effect technology]].
** Another one comes when they find out [[spoiler: That the Batarians, Blood Pack, and The Reapers are giving the Covenant their support]].
** Particularly when [[spoiler: Garrus, Tali, and Six end up fighting an ''Elite Husk.'']]
** The arrival of [[spoiler: "The Centipede," a husk made out of ''fused together drones''.]]
* PoorCommunicationKills: Shepard secretly orders Legion to hack into the Covenant Battlenet aboard the Corvette. [[spoiler: Joker and EDI see a transmission go out from said Corvette, think they're trying to warn the Carrier about Operation Uppercut, and send a counter signal to overload the source, incapacitating Legion]].
* ReasonableAuthorityFigure: Colonel Urban Holland is willing to stick his neck out to help Shepard, most notably when he bails the Commander out when Colonel Ackerson reneges on a deal they make for their freedom. Admiral Gravelston counts too, for hearing Shepard out after first happening upon him after they arrive in the Halo universe.
* ReportingNames: For the Covenant-type Husks, courtesy of Noble Team: "Centipedes" for the multi-Drone Husks, "Gremlins" for Grunt Husks, and "Reavers" for Elite Husks.
* RewardedAsATraitorDeserves: [[spoiler: Kreave]] recounts working with an Alliance radio operator to explain how he's able to [[spoiler: taunt Shepard over his comm channel]]. He also mentions killing the operator by [[EyeScream jamming his eyes]] [[HoistByHisOwnPetard into radio antennae]].
* RightBehindMe: Several marines are talking about how Miranda saved them with "Psychic Powers," (biotics), when several others come up and start talking about Samara doing the same thing. Just as one is about to comment on *ahem* at least ''two'' of her attributes, one of his fellow soldiers stops him, simply pointing behind him, to reveal the Asari in question.
* TheRival: Katherine feels somewhat threatened by having Tali, another mechanic, on the team for their first mission together. She gets over it by the time it's over though.
* ShoutOut: To the original ''Film/TotalRecall1990'' when [[spoiler: Noble Six pretends to be a hologram in Chapter 9]].
** When Dr. Halsey lists off the reasons that the Spartans are called Spartans, Shepard guesses that the people in charge of the project "[[ThreeHundred liked that ridiculous 20th Century[sic] action flick.]]"
** Chapter 13 is a loving homage to ''Film/{{Aliens}}''.
** One of the Marines is named [[ModernWarfare Ramirez]].
** Chapter one has Kasumi mention that she went to a restaurant that runs simulations of the end of the universe, which sounds like a similar eating establishment in Douglass Adams' book ''Literature/TheRestaurantAtTheEndOfTheUniverse.''
** "We got less than twenty four hours to get off this mud ball, Aszod is over 75 miles away from our current position, we have no idea if this ship is gonna be there or how many bad guys are in our way, we're tired, low on fuel, food and ammo, it's dark and [[TheBluesBrothers I'm wearing sunglasses]]."
** In Chapter 18, Kasumi's talking with Six. While they're talking, she says this line when asked why she's staying with the [[TrueCompanions Normandy:]] "Because I can help." She answered simply "Because I don't turn my back on my friends. I owe them, all of them, and if that means I have to duck and cover more often than not fine. Leaf on the wind, I go where it takes me." It's possible that the "Leaf in the wind," line comes from Serenity, where Wash says a similar line in the Finale.
** Shepard's reason for trying to stop Tali from joining him in the final assault on the wormhole generator is the same reason why [[TheIncredibles Robert Parr tries to stop his wife Helen from helping him in his final battle]]:
--> '''Shepard''': "''I can't lose you again!'' ...I'm not... strong enough to..."
** Kreave's rant about why he loves war in the epilogue seems like a setting-updated version of [[{{Hellsing}} The Major's "I Like War"]] speech.
** When [[spoiler: Ackerson is interrogating Tali about the Geth, she gives us this gem:]]
--> [[spoiler: [[DieHard '''Tali''': "Only my school teacher called me Mrs. Zorah. My friends call me Tali. You're neither Ackerson.]]]]
* SparedByTheAdaptation: [[spoiler:Kat, Jun, Holland, the AI Auntie Dot]].
* StationsOfTheCanon: In the broad strokes, the plot of "When There Was A Tomorrow," plays out much the same as the plot of Halo: Reach. However, at the same time things are radically different: the Covenant are much stronger, and only by the intervention of the Normandy Crew does it work the way it does. Also, by the start of "Guilty Sparks," the changes are starting to add up: The Master Chief is ''not'' the only Spartan on board the ''Pillar of Autumn,'' as it also contains Kat and Jun, as well as Linda.
* TemptingFate: In chapter two, Jack asks why Grunt didn't kill some of the Unggoy (Covenant Grunts) that were running away. He replies that they are not worth killing, and that they aren't shooting back. Seconds later, a barrage of plasma forces them into cover, forcing Grunt to admit that ''these'' aliens ''are'' worthy of being killed.
* VillainousBreakdown: Even when every last one of his Blood Pack subordinates are dead, Kreave only finally starts to lose it when Six stabs him in the head and starts peeling off his crest, [[spoiler: and briefly crosses the DespairEventHorizon while dying, fearing he won't be remembered gloriously]].
* WeAREStrugglingTogether: Almost no one in the UNSC trusts Shepard's crew at first, in addition to Halsey's pre-existing rivalry with Colonel Ackerson from canon.
** Emile ''really'' doesn't like Garrus, for that matter.
** Shepard and Tali's relationship become strained as they start [[PoorCommunicationKills keeping secrets from each other about problems they've been having]].
** Kreave does not think highly of Elites, and he and the Shipmaster of the ''Long Night of Solace'' demonstrate undisguised contempt for one another over not letting Kreave's Blood Pack mercenaries go on the offensive.
* WhamEpisode: Chapters 10 and 11 are back to back Wham Episodes, revealing that [[spoiler: Balak, the Blood Pack, and the ''[[EldritchAbomination Reapers]]'']] have thrown their lot in with the Covenant.
** Chapter 14 sees: [[spoiler: Tali [[NeverFoundTheBody possibly]] dying]].
** In Chapter 15 [[spoiler: Jorge ''still'' dies.]] Made all the more heart-wrenching by hints that it might have been averted.
** In Chapter 18, Not only does [[spoiler: The Inquisitor reveal itself and its motives]], but as Noble Team and Team Normandy flee to the fallout shelter, Kat tries to explain her reservations about Colonel Holland's latest mission assignment for them [[spoiler: Until Grunt narrowly shoves her out of the way of a sniper round, preventing her canonical PlotlineDeath]].
* WhamLine: Even before all that comes along, we're given the line "For now simply know that your prior feelings when we first met were understandable and I do not think poorly of you for them." Now, what makes this apparent CharacterDevelopment laden line so surprising? [[spoiler:''[[MindHive Legion]]'' is the one saying it!]] What makes it even [[BuffySpeak Whammier]] is that when Tali points out this change in behavior [[spoiler: Legion]] insists it's not calling itself [[spoiler: "I"]] and seems genuinely unaware that [[spoiler: its]] doing so. The exact significance of this line has yet to be seen, however.
** Now it's been extrapolated on. [[spoiler: Legion uplinking with DOT caused it to develop a burgeoning sense of individuality]].
* WhatTheHellHero: Garrus is horrified when Emile kills a grunt they've finished interrogating, even moreso when [[KnightTemplar Samara]], who successfully interrogated the grunt in the first place, said that's what she planned to do anyway, since it would, as she promised, [[JediTruth free him from his fear and pain]].
** This covers Shepard's response to learning about Dr. Halsey's past with the Spartans, and some of his crew's reaction to him (reluctantly) siding with her anyway.
* WhereDoesHeGetAllThoseWonderfulToys: Jorge's opinion on seeing the ''Normandy's'' weapons, including the Cain and Collector Particle Beam.
* YankTheDogsChain: Legion is set up with the possibility of [[spoiler: saving Jorge from having to make a HeroicSacrifice during Operation: Uppercut]]. Unfortunately, he ends up getting incapacitated [[spoiler: and Jorge dies anyway]].
** Subverted when [[spoiler: Kat is saved from being sniped by an opportunistic Jackal when she [[PlotlineDeath should have died]]]] only to [[spoiler: be incapacitated by ''another'' sniper a few chapters later. She survives but loses her mechanical arm and is too injured to fight for the rest of the story. Doesn't stop her from helping prepare a nuke]].

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