Uhhhh...
I hate Killzone 2, but at least they were going the right way with the multiplayer. Shame it was laggy and the concept got overshadowed by MAG...which I also detest after a bit of playing.
Two things about games I like: Left 4 Dead 2 can be annoying if you get a team of dickheads or whatever, who are all friends and just intentionally kick/kill you at the beginning of each round so they are the only ones on the team (It happens more than youd think) and Battlefield 1943 - The planes bombs could be stronger than farts, please. They are only good for making pretty black holes in the ground, and blowing up buildings. But not people... :/