Player CarnoBF suspected cheating, but he was cleaned.
https://bf4db.com/player/ban/1895358074#reply-88294
Ok look at this report.
http://battlelog.battlefield.com/bf4/ru/battlereport/show/1/1125750789375455872/1895358074/
31% headshots and 26% accuracy. A part of this kills from famas. When you meet him 3-4 hits and youre dead. He can kill 3-4 persons with famas. I dont believe this skill. 593hours of gameplay 137 level and absouletely god-like skill na matter how server is lagging.
AImassist!
I failed to see anything suspicious about his stat. If you had video evidence showing this player using aim assist you could post them below, otherwise he would still be marked as CLEAN.
Nothing here that says "this dude hack". Like riotranz said, video evidence would be best.
The case got already reviewed several times at he player first got banned and then unbanned. If you want to report this player again, you need to come up with some new and clear evidence.