Player is using aimbot and wallhack due to how he runs around jumping around corners shooting enemies in head 90% of times
Proof 1:https://www.youtube.com/watch?v=fbhu8CahOoE - in this video you can see him shooting enemies that aren't even on screen yet he gets headshot bonus alot and he does 90% headshot.
Proof 2: https://www.247fairplay.com/CheatDetector/unexpected8 this site claims him as SUSPICOUS and "CAUTION: This player seems to be linked to a cheater" and https://i-stats.net/index.php?action=pcheck&player=+unexpected8+&game=BF4&sub=Check+Player this site also says SUSPICOUS and marks out his WEP in yellow with ACC of 101,83% which is defently aimbot sign.
If a pro player was that good 247fairplay and i-stats wouldn't say suspicous data found since i have meet real pro players and checked their stats on the site did was marking some green, yellow, orange here and there but it never says SUSPICOUS DATA FOUND and it never said "CAUTION: This player seems to be linked to a cheater" this is proof to show you this player is hacking.
Not last but least. Player even admited in a youtube video that he uses Wallhack and Aimbot but that video was taken down quite quickly so i can't link it :/