Despite what many people tend to say about it, I find Titan mode from 2142 to be about the only game style that I'm really enthusiastic about. Perhaps Assault Lines from the same game as well, though if the PAC team isn't working together well, it can feel a bit unbalanced. I liked Power Struggle from Crysis a lot, too. I dunno, maybe I'm just inclined to prefer game types that are a bit uncommon.