You can't watch the way the head moves there is no inbetween when you slow it down it goes straigh from looking at one spot to the next, you can't do that
slow this down and compare, Notice how between the spins that the head does move during the spins instead of snapping straight to new position. In that video Yoyamin is definately using some kind of Aimbot you can see it targetting the other players in the back aswell. It's not missing hits it is targetting people out of range because he is not using kill aura
there is a few other things like him hitting from the side but that head movement is not legit