Hacker. ( He has Damage, Aim, and possibly walls.)

Almost 5 kd with 20 hours played. Yes he played on console before. Want proof? 

Here you go: https://www.247fairplay.com/CheatDetector/Diorism

Battlelog: http://battlelog.battlefield.com/bf4/soldier/Diorism/stats/1303523967/pc/

Video proof: https://www.youtube.com/watch?v=zS7965v8SA8&feature=youtu.be

Btw, i've got more video proof if necessary.