Thanks for the reply. Have you ever tried out going on a Patrol mission and aimed at objects? It really helps as you are already closer to headlevel before even using your zoom and thus take less time before pulling your trigger. True Vanguard (www.youtube.com/truevanguard) used to do that, too - it helped me and others improve our aim significantly. Try it out, just a sequence of 15 to 20 minutes and let me know whether your sight alignment has become better.

I know that pre-aiming vertically is important but you put your character aiming at a stationary position then jump on a rock and when you do that your head-level changes, then you aim your rifle and re-adjust. That's not pre-aiming. Pre-aiming is when you already have your sights vertically lined up even before you scope so you just have to make a slight horizontal correction or a swipe. Anyways, you got good skills so kudos on that.