They really do need to do something about this. I have been joining a lot more games in progress. I have started looking more at the gone players in the carnage reports. I am seeing a lot of guys with the biggest amount of enemy kills that are gone(I would guess booted). I think it has a lot to do with new players. I joined a game midway in today that we were losing pretty bad when i joined. I still managed to be the top ranker at the end with the most kills. I see the guy I replaced had way more kills than anyone else on this team. I know I have been booted 3 or 4 times today. I was the leading enemy killer on our team every time.