Can't remember the name of a game... plz help!

The only game that I can think of that is similar to Deus Ex HR on the ps3 is Alpha protocol, doesn't sound like the trailer you described though.

Umm.... Hitman? Since a lot of people are complaining about how action-oriented it is. It's not sci-fi though, and frankly the only game I know that uses a lot of yellow is Deus Ex: Human Revolution.

Syndicate or Alpha Protocol maybe.

I think the game you are trying to remember might be Haze.

I think I know what you're talking about, and I forgot the name too.

Perhaps Bodycount?

you're thinking about *syndicate* i'm sure of it.. game was awesome but wayyyyyy too short.