StuH 42

The Sturmgeschütz III (StuG III) assault gun was Nazi Germany's most produced armoured fighting vehicle during World War II. It was built on the chassis of the Panzer III tank. Initially intended as a mobile, armoured light gun for infantry support, the StuG was continually modified and was widely employed as a tank destroyer.
In 1942, a variant of the StuG III Ausf. F was designed with a 10.5 cm howitzer instead of the 7.5 cm StuK 40 L/43. These new vehicles, designated Sturmhaubitze 42 (StuH 42), were designed to provide infantry support.