Sturmgeschutz III StuG 3 tank German Wehrmacht Sd.Kfz. 142. The assault gun based on the Panzer 3 was the most built and most successful German tank in World War 2. It was to be found on all fronts, in France, Italy, Russia and Africa Sd.Kfz. 142 German assault tank World War 2 StuG III. Developed on the basis of the Panzerkampfwagen 3 as a support vehicle for the infantry and assigned to the artillery. Assault Gun III. Lightweight, Classic fit, Double-needle sleeve and bottom hem