Creeper

Yeah, maybe the shooting range on a peaceful day in your neighborhood with a 4x or less magnification. You would have to hold the rifle in the perfect location constantly as you move to maintain a picture like the suggested screenshot while in combat under fire. You would also be dealing with a MUCH smaller area of magnification, the scope view would not be that large with your head back scanning and viewing the scope with both eyes open. This is entirely unrealistic, no matter how you try to describe it.

I'm sure this has been covered and resolved in Arma III, but the ability to shoot through/ shoot out glass windows without rounds going all over the place.

Yes, very unrealistic, please don't use the RO2 optics system. I read the title followed by the suggested picture and almost almost sprayed my screen with orange juice