My teammates complaints about him using aimbot(check chat of video), made me run a check on him, in an anti-cheat site.
Found very suspicious stats(headshots), so I reported him, to the servers admins.
https://www.247fairplay.com/CheatDetector/Pablo_kracun
After 2 minutes, he left the server.
http://battlelog.battlefield.com/bf3/soldier/Pablo_kracun/stats/1695155956/pc/
http://battlelog.battlefield.com/bf3/battlereport/show/1/87021799/393808759/