6440山炮和碉堡防守，敌军普通MP40冲锋枪士兵和GrW-34 迫击炮士兵冲锋 Mountain cannon and

6440山炮和碉堡防守，敌军普通MP40冲锋枪士兵和GrW-34 迫击炮士兵冲锋 Mountain cannon and bunker defense, enemy regular MP40 submachine gun soldiers and GrW-34 mortar soldiers charge