Well that's why I've stopped buying games that rely mainly on online play.
Assholes have been cheating ever since games got online. Even as far back as Interstate 76 you had the losers running around with invincible cars that could kill every other car with one shot.
Tribes was awesome and full of promise until people actually started to play, at which point the cheaters took over and now you can't get a decent game in no matter where you look.
I'll stick to the non-online games. At least there the only one cheating is me