He has 12 rail gun kills but has no DLC's and has never played a non-vanilla map. 

And...  Damage mod.  66% kills/hit with Type88, 48% with U100 overall, and some obviously dirty battle reports.

http://bf4cheatreport.com/?pid=1941552480&cnt=20&start=&startdate=180123   http://prntscr.com/i3qvjv

https://www.247fairplay.com/CheatDetector/ciasog688  http://prntscr.com/i3quqb

Cheater!