About shooting on medium and high distances - thats where new weapon sway mechanics should come to play. Principle is the same as in Arma2 - to simulate shaky hands, however in A3 it is smoother,
reflected only by size of the corsshair, and has crapload of additional parameters. The tricky part is setting them up to produce most realistic result, which is a lenghty task. In short - mechanics for controlling precision are there, they only need to be tuned-up properly.
"Penalty" for quick aiming (increasing sway/
dispersion during fast mouse move) is pretty common and well-proven feature in fps games, so good point - I'll see if we can do something about that. (no promises though!!!!!!!

)