Got some reports on this player, looked him up and saw the auto cheat meter was at 27% percent already and saw this:

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ACE 23: 131 kills, 3.12 KPM, 15.26 ACC, but with 46.5% HSKR, and 40.18 Damage.

That's about 60headshots I couldn't find.

That's pretty high for an assault rifle....

Could have been when he was tuning hacks, or first trying them out.

Also looking back 400 battle reports (bf4cheatreport) The highest HSKR I found was 40% with a sniper.

I personally don't believe that this player cheats, I've played with him multiple times before, even spectated . Nothing suspicious ever came up except for a high kdr sometimes, but we all have those moments don't we?