Aim assist. 
Either implement a function to have it on or off, or entirely removed. 
It can be quite annoying having someone's head in sights and then have it thrown off because a target runs past or in front and follows... 
Shouldn't be hearing anyone crying about this because it really isn't something people need to play the game.
But I do have a tissue box in hand, just in case.
						
					
					
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	I'm pretty sure aim assist has had about net -20% completion time of all my strike plays due to missed scout rifle shots.