Probably, vcmp de-sync. I don't have a video from my side, but don't you think this is redicilous that i'am having headshot protection only while i'am using sniper rifles? Same situation with [MD]UncleMabojor, he was standing still when i was hitting him right in a head, but in a moment later he just jumped away from my shot. Zaim headshoted me alot of times with sniper rifle, so tell him to upload full video.
P.S. I think you guys just trying to ban me again by using my bad reputation.