Don't want my Gold to go to waste. Right now RB3 is all it's good for, and that's awesome, but I wouldn't mind branching out a bit. Any games out there with red-hot multiplayer that are still serviceable as single-player games? Xbox exclusives are nice too, otherwise I'm not sure why I shouldn't get it for PS3. And army-themed first-person shooters need not apply.
Otherwise, lay the suggestions on me.