Submarine game. Take control of a uboat U-48 and patrol the North Atlantic. Hunt Allied convoys and avoid escort groups. Return to Kiel bunkier to load torpedoes and upgrade your uboat. Patrol report: 1203 Grid 42 Reached patrol area. 2230 Grid 42 Ship spotted, bearing 080. 2238 Grid 42 Visual contact, medium cargo ship. 2243 Grid 42 3 bow torpedoes fired.