One in the Chamber got 8 Kills + Last Standing. 6 People within 20 Seconds in a chain. It's on my sig. Just click the 8 + Last Standing there.
Damn, some of you have awesome high-kill rounds. Mine doesn't really compete, but thought I'd post it anyway.. On one note, I was KOSed by the second player I killed. People need to pay more attention to KOSes.
http://steamcommunity.com/sharedfiles/filedetails/?id=450652509 I've gotten better, but that's the highest I have recorded that I know of. Now I just gotta beat that :3