which is why i always played coop with scoring off; much more entertaining. the one time i submitted to turning individual scoring on, it was a disaster; everything enjoyable about the game was ignored by my peers in favor of killstealing and leaving everyone else to die so they could have first blood on the next group of enemies.
thats the problem with multiplayer in general these days; they dont even WANT to be fun, they want to keep you addicted to getting a bigger highscore than the other guy. at least in arcade games, you were bettering YOURSELF at the same game by trying to beat a high score; now the entire experience is meta-gamed away.
ive said it before and ill say it again; super smash bros and conkers bad fur day. both games had multiplayer pretty much entirely dedicated to screwing around with crazy weapons, levels, characters, what have you. tourney players for SSB made their own rules and do their own thing, while everyone else can bullshit around just as freely. modern multiplayer requires a dedicated group of good friends who are more interested in just hanging out then getting a triple kill, yet modern multiplayer keeps turning gamers away from that ideal and towards interactive crack; not good for you, you might not even like it, but you cant stop playing it (to the dismay of friends and family who'd rather you do something FUN with them instead of yelling at them for stealing your kill or camping).
i used to have great times with my cousins playing SSB, conker, and goldeneye. now im the only one who doesnt race through coop trying to get a high score or meta-games the fun out of versus.