The Sherman tank is a Advanced Medium Tank playable by the American Army. It is the upgraded version of the Lee tank. The Sherman is a well rounded tank that has no extremely noticibale flaws but can be taken out by a fighter bomber or a heavy tank with ease. Facts. The m4a3 Sherman had a low velocity 75mm gun which could not pierce any German tanks at long range. It was protected by 2inch of sloped armor which panzers could easily pierce their armor. The tiger could easily do this with its 88mm cannon.