I am not sure how to report someone who was already reported once for cheating in BF4 so I will do it here.
So this guy not even complaining about that he is cheating and writes it in his info-text too:
"I'm pro heli stealer :3
My hobbies in this awesome game:
- repair, block AimbuttUltra and hover
- destroy heli when Bartis wants to take it and block his push
I'm using spothack shhhh
The most repair tool ribbon in a round: 28 >_<
Spotting ribbon: 25
Because of MULTIMIX OF CHEATS
https://i.imgur.com/jdqhIXF.png
Short tutorial how to steal enemies' heli
https://i.imgur.com/WfDPpFH.gif"
So he is in fact using a Spotting hack to spot everyone automatically in every round and if you look into his award here, the spotting Medals are way too much to he was not using such a program: https://battlelog.battlefield.com/bf4/de/soldier/AimbuttChan/awards/1873722000/pc/#m07 . So I hope u will investigate that again and ban him soon please.