My role as the gunner required me to clean the optics on the gun sight perfectly, and I got the glass ready and applied a small amount of soap to the gun sight lens. Sorry, but why was that? And why do you mention such a small act? This soap was to prevent the optic from steaming up with all the heat and fumes inside the Stug compartment. It was quite effective. I mention it because this was a ritual of mine, in getting the gun ready for combat.
