From: Dallas, Texas, USA
I would like to counter, to some degree anyway, that foot units avoid tanks like the plague. All I know, is that I've seen what appear to be many actual combat films from WWII, particularly the Gerry ones, where an armored car or tank is in the city, shooting into burning buildings and what not, and the foot soldiers are crouching alongside the side that is opposite where the AFV is firing at. Perhaps, it's just that infantry have little regard for the "protection" of tanks in open areas, but when the areas is congested, such as in city fighting, they are more apt to worry about small arms fire, therefore be protected on one side anyway, than that they are worried about bumping into some hidden AT gun. Probably, whether the city has been reconned beforehand, to spot any tanks/AT guns, makes a big difference as to how the men think about the tanks. When we see infantry behind a tank side, we may be thinking that the infantry are there more for their own protection, but I think it's actually for the opposite reason; they are there to protect the tank from some nobody just running up and lobbing a Molotov Cocktail. For city fighting, I would think they would be looking more for the protection of buildings rather than that of tanks, so obviously the infantry stay by the tanks not for their own good, but since they're supposed to be there for the tank, they take advantage of what little cover they have and still escort.