Very suspect, killing super fast with LMG's.  Looks like a damage mod.  The same thing was happening with another player, checking battlereports and they are both on another server and destroying the other players, so guess they are friends and using the same hack.  The other guy you've banned already - https://bf4db.com/player/414520935

https://www.247fairplay.com/CheatDetector/adnangames

http://battlelog.battlefield.com/bf4/battlereport/show/1/1045300286038889728/1012326676/

http://battlelog.battlefield.com/bf4/battlereport/show/1/1045321778874173888/1012326676/