Looks a lot like a stolen account, but a stolen cheater's account.  

Whole lotta HS: https://bf4db.com/player/1778267025/snapshot/25661

18HS/32 with AKU-12 and LMG: http://battlelog.battlefield.com/bf4/battlereport/show/1/1091452888258618752/1778267025/

http://bf4cheatreport.com/?cnt=60&pid=1778267025  http://prntscr.com/mfl1og

All LMG: 58HS/91 http://battlelog.battlefield.com/bf4/battlereport/show/1/937310032385186304/1778267025/

15HS/26: http://battlelog.battlefield.com/bf4/battlereport/show/1/929412868210052736/1778267025/

20HS/35: http://battlelog.battlefield.com/bf4/battlereport/show/1/922123210533708288/1778267025/

18HS+/30 with Groza-1: http://battlelog.battlefield.com/bf4/battlereport/show/1/922123210533708288/1778267025/