What I HATE the most is when after you have gone through a fight, you are really low, and then some one comes up from behind you and cleans you up, and you dont have a chance because you are so low on health, People stealing my kills where i do all the damage, and some guy jumps in and onetaps them after I do all the work really annoys me. Also, people who team upwhen they have extremely good gear, there is just no need.