Dont know is it a bug or something else. I just bought the game a week ago, installation went fine, i can even play the Single campaign without any problem. But multiplayer seems very strange. I mean, am just unable to kill my opponents. I mean, whenever i fire or any of the opponent, i can see their health bar decreasing but they dont die even after the health bar is completely empty. It seems like they have some kind of invisible protective shield. Is there someone who faced the same with MP3 ? if yes, please let me know how to fix it if its a kind of problem or just confirm me if its a bug.