Well several games have done US-military forces, actually one of the earliest FPS games, Half Life had the USMC as principal antagonists aaaand, didn't really do much to be honest. It might as well have been contrived circumstances that the Spetznaz had occupied the facility.
Really it was just hard to understand the motivation, USMC like to see they can take on anything and be the heroes, gunning down twee old scientists just seems implausible. It's just like... why?
It always just seemed like they were being manipulated or brainwashed by G-man. I think one way it could make sense is if it combined it with the plot of The Thing, how super dangerous aliens can perfectly mimic humans and a few get into the marines' trust then attack and kill a load of them. This then makes the Marines super suspicious of all the staff at Black Mesa and it only takes a nudge from G-Man to convince them all the staff are shape-shifters and must be contained and killed if necessary.
But Half Life 1 never explores that angle, it just takes the X-Files route of "herp a derp, guberment ordered me to round up and kill unarmed civilians, I don't care if I risk court martial for following what's clearly an illegal order".
Really, that's what I want, a plausible antagonist. Where it makes sense why they are trying to kill me, and an INTERESTING reason. The current situation:
>Enemy is interesting
>Enemy's antagonism makes sense
Pick one.
At the moment, any attempts to make interesting enemies have made ones that don't make sense. You can have the very boring and predictable Taliban forces or contrived circumstances why you're fighting the whole US army.
Tom_green_day said:
Or Americans, a game where they are the enemy that actually has good gameplay.
Not singling you out in particular (okay, I am) but that's hardly original.
Here's a list where the combat opponents in shooters are Americans (not including zombies or criminal gangs):
-Half Life 1
-Half Life Blue Shift
-Every GTA game
-Every Saints Row game
-Half the games in COD multiplayer (one team is American, the other OpFor)
-The final act of Modern Warfare 2 in particular
-Spec Ops the Line
-Prototype 1 & 2
-Kane and Lynch
-Mirror's Edge (clearly in America, and way more shooting in this game than there should be)
-Red Faction: Guerilla (the EDF all have distinct American Dialect)
-One third of the classes in Team Fortress 2
-Bioshock (not technically part of the United States, but founded by Americans)
-Crysis 2
-Metal Gear Solid 4
-Half the Tomb Raider games (Lara shoots her way into Area 51, killing scores of US servicemen for no other reason than to steal their stuff)
These aren't obscure games. There is no shortage at all of games where Americans are the opponents.
I think it's simply the case where people DON'T NOTICE when the opponents are American, it just doesn't register even when gunning down even American cops and US servicemen. it's like watching Wile E Coyote get hit by an anvil.
I remember, way back in 1990's there was a brief slight controversy over Lara Croft being quite so gung ho killing US servicemen. But then everyone told them to sit-down-and-shut-up, it's just a game, it's not even trying to be real-to-life. I'm sorry there isn't a steady supply of Nazis throughout history that can always be there as the "ideal bad guy" as the Indiana Jones movies showed they were so good for.