RE: Tank damage -- "Optics"
Well, some subsequent data were inconclusive. My optics-impaired tank got a first round hit on a moving target at around 200 meters, which got my hopes up that his gunnery would be unaffected. But then he sailed two rounds over the top of a stationary target at about 400 meters; however the target was hull down. So on the one hand his shooting appears more or less normal, but not enough data to feel very confident in that judgment. I didn't notice that he had any trouble spotting enemy tanks with the commander opened up, but the enemy tanks were out in the open at his 12 o'clock.
"A bad plan is still better than no plan at all." -- Mikhail Tal