Captain Sonar

In Captain Sonar, you and seven friends helm two submarines in a real-time elusive battle to the death. (Ignore the box, only play with eight players.) Imagine a full table of two teams of four, separated by a long cardboard shield. Both teams' Captains are frenetically shouting directions as quickly as possible to evade drones and mines across a 15x15 grid studded with islands. The Engineers are pleading to let their ships surface to heal the damaged weapons or sonar systems; the Radio Operators are hungrily searching for areas of the map that match the enemy Captain's orders, which they're tracking with a felt marker, a clear plastic sheet, and a map.