[Assassin]

I dont completely understand you but if its about always getting a back stab its true there is no hacks for it as far as i know the, trick is about the timing when he stabs the player as he pass through him to make it a back stab if thats what you meant, so back to your question hax or superb skills? its skills and that demo is inconclusive.

edit: that guy is linear lol didnt notice :/