This guy was banned for a while because of video evidence (https://bf4db.com/player/ban/1021645358). Then a mod came in and decided he was "clean" despite pretty convincing video evidence demonstrating otherwise.
Luckily Fairfight has picked up the slack. Check out the stats reset on his linked account:
http://battlelog.battlefield.com/bf4/soldier/Avuiz/stats/1870014523/pc/
Findyoursolace = Avuiz. This guy is a cheater, please ban him accordingly, and maybe also take a good long hard look as to why the mod declared this player "clean."
Thanks