OBS:
When in the gunner position of a vehicle with rooftop mounter MG, the optics (sights) behave strangely.
The camera viewpoint jumps between discrete points when the weapon rotates, rather than being fixed to the weapon. As the viewpoint is very close to the back sights, the effect is clunky and distracting.
EXP:
camera viewpoint should be effectively fixed to the weapon, similar to hand held weapon optics.