When a soldier fights in the snow, in water or in the rain I doubt his hands would stay still like in ROOST besides the breathing sway.
If you're in a cold environment, being supressed, have shellshock, etc. I would suggest your ironsights would become as shakey as a guy with parkinson's.
Maybe seeing the horrors of war like dead teammates and gore could play a factor too. Cigarettes could decrease the effects of stress perhaps. You could have a meter like the supression meter that increases when being confronted with certain horrors.
If you're in a cold environment, being supressed, have shellshock, etc. I would suggest your ironsights would become as shakey as a guy with parkinson's.
Maybe seeing the horrors of war like dead teammates and gore could play a factor too. Cigarettes could decrease the effects of stress perhaps. You could have a meter like the supression meter that increases when being confronted with certain horrors.