I chose skill, because it has taken me quiet a good amount of time to be able to eye ball where my cross hairs would be if I had them on an unscoped sniper. As well I feel it is worth calling skill because when you try to no scope someone on purpose... you have to do quiet a process. In a matter of seconds you need to unscope, flip around to face the enemy, move your rifle in line with the enemy just by eye balling where the cross hairs would be and then shoot the enemy in the head or chest to kill them. All before the enemy who has snuck up on you, unloads an entire clip into your back. OR while the enemy who has snuck up on you unloads an entire clip in to your back.