I've thought of that once before...never posted about it though. Ya i agree, the system for getting the person's exp should go in hits...same with the kills (if you shot the guy 6 times, and another guy shoots him 1 time, and the guy dies, the kill should count towards you. Also this might get to be a little hard? There'd have to be a reset, after you die...Example;
Some guy is fighting a guy on your team, you don't jump in, u wait for the outcome of the fight. The guy on your team loses, so he should get no exp.(when the enemy dies) But the guy on the opposite team is down to 73 hp, and doesn't heal, because he thinks he can beat you too. So you guys fight, and you beat him, with 68 hp left. You would get the exp from the enemy, and the guy that died before would get no exp, even though he got the enemy down to 73 hp. Then the process would continue with you (since you won))
I like the idea