Well I have a number of reasons to rage quit, first and foremost Spammers, Campers, Team Killers, Greifers, and Quitters. Spamers? They are my biggest bane in MW2 and probably why I am going to trade it in, heck I thought the spam could be bad in Halo 3 but its nothing comepared to MW2 Spam. Campers don't piss me off if they are camping their teams flag or something like that unless they glicthed a wall or some BS but the moment they camp my spawn point thats when it becomes absolutely retarded.Greifers piss me off probably the most. Nothing makes me want to rip someones larynx out and show it to them more than this. Like this one game of Halo I played where this jackass on my team kept EMPing my vehicles, whats worse is the fact that when he EMP'd my Hog it kept rolling foward and killed him and I got booted from the game cause of that jack ass! Team Killers usually don't stay around too long if I figure out they are killing me on purpose, if its just bad friendly fire then it doesn't really bother me. Quitters suck too ... nothing like joining a big team match and finding out your the only person left!