Headquarters section Four alert companies: One mechanized company in wheeled armored personnel carriers Three motorized companies in trucks Support company Anti-tank platoon with 3x45 mm/57 mm(later ATGM's) Artillery platoon with 3x76.2 mm ZiS-3 field/anti-tank guns Mortar platoon with 3x82 mm mortars Headquarters and staff company with: signals platoon engineer platoon chemical platoon reconnaissance platoon transport platoon supply platoon control section medical section