History NightmareFuel / XCom2

* What it's like to be a civilian in this world? You live under the benevolent rule of the ADVENT, your alien saviors, but a bunch of [[YourTerroristsAreOurFreedomFighters armed lunatics are running wild all over the globe, so caught up in their insane conspiracy theory that they're willing to assassinate beloved leaders, bomb genetic modification hospitals, murder anyone who supports the ADVENT as part of its ranks, and generally commit all manner of atrocity.]] And worst of all, they're actually ''right'', but you won't know about this until it's too late, and you're being murdered as part of some inscrutable alien plot.

* From ''Alien Hunters,'' the mission "The Nest." Vahlen tried to reverse-engineer some species that the Elders genetically engineered the traits out of, and you discover why they did for good reason. You stumble upon a Viper King, the first male you've seen of the species, and it's been breeding like crazy. It's not apparent just HOW crazy until you're halfway through the level and hordes of (armed) baby Vipers start crawling out of the walls on every side.]]

** This results in a pretty grim reveal for the civilians when you successfully perform the Tower Raid and reveal the lies of ADVENT through their global announcement - the so-called volunteers for ADVENT's security troopers are factory-grown inhuman hybrids, the escalation of anti-terror measures was the draconian slaughter of refugees who refused ADVENT's iron rule, and the Gene Therapy Clinics were a front for the horrific abduction of the Avatar project.]] Imagine being told that everything you believed about your new masters was but a lie. No wonder humanity as a whole revolted against ADVENT after the broadcast - you can ''see'' the shock, horror, and disgust on the faces of the civilians as they see the truth behind ADVENT's lies.

** Finally, in the endgame portion of the narrative, the Informant discovers a horrible truth about the escalation of the Avatar Project, a truth urgent enough that he willingly sacrifices himself to alert XCOM; the aliens have decided, with the death of one of the Elders who was controlling the Avatar your operatives slew in battle, [[KillEmAll to start "processing" all "non-essential" humans]], [[SchmuckBait by inviting them to the Gene Therapy clinics for a "promised reward" for the twenty years of obeying their ADVENT masters]]. Lily begins the cutscene snarking about the Informant, only to be struck speechless by the suddenness of the reveal.

* If you equip a Spark unit with the "[[https://www.youtube.com/watch?v=MmE9vvsaass Julian]]" voice you find out what Lily did to him after discovering the copy of his mind in her personal gremlin. He's been partially lobotomized so he can't remember certain bits of information and mind raped into obedience. Now granted he is a murderer but it's still really disturbing to see such a nice person do something like that apparently without feeling at all bad.

* The Avatar itself. For starters, if you're even slightly ill-equipped to deal with the Avatar, expect your squad to be retired permanently within a few careless moves. It teleports every time you hit it, it is capable of healing itself every turn, its plasma rifle can easily decimate your soldier even with good armor, and its psionic abilities will easily turn your own soldiers against you, or obliterate them through multiple obstacles. Even when dead, the corpse is capable of causing auditory hallucinations to anyone passing by. No wonder this enemy is the key to Advent's victory.