I agree Killzone is really under rated, all killzone needs is coop, maybe some special opp type stuff, but coop mainly. MW2 is a great game, but there all pritty much the same, killzone is in a class of its own. Killzone 3 will be amazing !! Reading other comments, my opinion is not because im a fan boy, I own a PS3 and 360, Its based on what I like to play, Plus if you only have a 360 and don't know much about Killzone 2 , As a gamer you may want to check it out before making comments you may regret.