What contributed to the German army's tactical and operational success in the initial phases of World War II? A. The Germans conducted both their tactics and operations in a very deliberate and methodical manner. B. The Germans refined infiltration tactics, emphasized decentralized command, mission-type orders and combined arms organizations and integrated it with new technologies. C. The Germans clearly possessed the most lethal and sophisticated armor systems and executed mission-type orders with Panzer units across multiple echelons. 10 points