An infantry support vehicle that based on the chassis of the panzer IV . The battles in cities had shown that the normal support vehicles like the STUG III laked in the ability to knock down buildings , so an vehicle was build that could it . This carries an StuH 43 L/12 15 cm with 38 round of ammo .
Btw this one has another nice detail , the wheels are fully made out of steel because of the lack of rubber .