I had an idea going for this.
Don't remember what it was.
Something about evil corporations from a bunch of zombie stories plus Crysis joining together and then all their viruses combined and get released, and then the Ceph show up and their virus shit combines with the Mercer virus making fucked up alien mutant zombies, and then Spider-Man(both Toby Maguire and Andrew Garfield) is all "the fuck?" and then the Punisher said, "word". And then Snake Plissken said, "hey some Jap faggot stole my name, fuck him" and I said, "word" and then Saeko Busujima shows up and gets infected and becomes the most hardcore person on the planet, and then all these survivor dudes and dudettes are all like, "yo we gotta put this Mercer prick on ice, kill Umbrella(Neo-Umbrella, holy balls), Wesker(CHRRIIIIIIIIIIIIIIIIIIISS), Ada(I lost my bag of pizza flavored Combos because of her), Crynet, Horzine and Gentek and this crazy new ninja chick who may be a good gal but just confused(morally and sexually because she doesn't know if she wants to get it on with DJ Skully or Claire Redfield who stole Jill away from her brother Chris so she and all the Raccoon City chicks can get it on with Leon)" while Prophet is all "I AM PROPHET" and he stands on a NYC taxi while everyone/thing is burning around him and ashes and embers are flying around him making him look cooler than everyone in existence and then Saeko, James Heller and Alex Mercer have a non-sexual three way on some floating Ceph super weapon rock shit over the Empire State building so the whole world can see while a fuckton(metric) of infected are swarming in on them and the survivor dudes/dudettes(plus the four dudes from Payday the heist because fuck you that's why) and F-22s, A-10s, AC-130s, F-117s and Tie Fighters are bombing the shit out of everything. Then Leon looks at the camera all serious and says, "NO HOPE LEFT" and then the trailer ends and the Resident Evil 7 logo appears.
But I can't really remember and I don't have enough models to pull off any of that, so you just get a picture of some dudes/dudettes from Killing Floor, Resident Evil, Left 4 Dead and Dead Island standing around.
Garry's Mod and Photoshop.