You are the Commanding Officer of a U.S. Navy Virginia-Class nuclear-powered attack submarine on a mission to destroy enemy submarines and warships. The enemy is supplying weapons to terrorists to destabilize Europe and the Middle East.

You have Mk-48 ADCAP “smart” Torpedoes and UGM-109 Tomahawk Cruise Missiles on-board. Although your submarine has the latest electronic equipment, countermeasures, and automatic firing solutions, it is your tactical skills and your use of countermeasures that can make the difference between a successful mission and your destruction.