Hi, my suggestion is to make a script that will our show in more detailed in a mil. (millesimal) of an aiming angle, in view of the optical sight. In Arma 2 OA we have a cool aiming circle, if can be transferred it to Arma 3?
Or maybe something in that style?
http://simusurveyx.caece.net/wp-content/uploads/2011/04/002_5.jpg
http://simusurveyx.caece.net/wp-content/uploads/2011/04/003_5.jpg