In the current dev build, you implemented 3d-scopes .
Don't get me wrong , they look great !
The big problem is, while being zoomed into the scope, you can look arround using the numpad keys (looking left right up down) or a device like trackIR to look around with full field of view ZOOMED in by the the amount of the scope magnification you are using !

I suppose a fix would be :
Disable the options of looking around outside the scope for scopes with magnification (for example SOS, Arco, RCO) because is it extremely unrealistic and gives several players a huge advantage.

Another option could be to force to zoom OUT, when looking around with your head while zoomed into a scope and zooming back in when releasing the button or returning to center view .