Killzone 3 has AWESOME multiplayer, but do NOT listen to the person who mentioned it plays like Halo. It doesn't play anything like it in any way.
However it does play a bit like Battlefield so if your into that type its fun. The only real problems I had with it are that classes really aren't that deep. You pretty much can only unlock 3 primary weapons per class and 3 secondaries and a few upgradeble "perks" for your class.
Its great fun though, just not a lot of depth.







