Control Console, Titan II ICBM Site 571-7. For a quarter of a century the Titan II, with its nine-megaton W53 warhead, was the largest operational land-based nuclear missile in the U.S. arsenal. This control console at ICBM Site 571-7 in Sahuarita, Arizona, sits within a buried concrete capsule and is isolated from it by massive springs. On receiving an order to launch and following a set of authentication procedures, the commander on duty and his deputy were to turn keys in separate switches, launching the missile without possibility of recall. The site was deactivated in 1982.