IGN of reported player: lavaaa
Reason: n-step (what I believe is n-step, other members on my team confirmed it for me)
Proof/Evidence: https://www.sendspace.com/file/cnz2m4
I flipped him a number of times and he was teleporting back to original position. If that isn't what n-stepping is and you know what it is, please tell me so I know for future reference.