There was a question if it is possible to perform such thing at LAN. Yes, it is. I'd only need my mx518 and my settings to do that. And why is it possible to jump with almost perfect angles, but impossible to shoot only headshots? Because when you jump, everything depends on you, but when you fight your enemy moves and you can't know for sure where he will move next. I have to say following someone's head with crosshair is way harder than achieving close-to-perfect angles.