kamil is hacking, you see this in moments 1:20 watch, after shooting the player next to the bins he imediately aims at the wall and shoots, this is because the play in on the ground on the other side of the wall. he is using aimbot. he cant control his gun on move with it.
My opinion. I have seen many hack videos and this looks like one of them. every check out 1:20 and watch