Command HQ supports head-to-head play by two players connected remotely via serial (RS-232) cable, dial up modems, or locally via a null-modem cable.
RAF Bomber Command | Strategic Air Command | Air Training Command | Air Education and Training Command | United States Central Command | IV Fighter Command | Air Defense, Tactical Air Command | Tactical Air Command | United States Pacific Command | Command & Conquer | Command and Staff College | RAF Coastal Command | Bomber Command | Air Force Reserve Command | Aerospace Defense Command | United States Army Training and Doctrine Command | United Nations Command | United States Strategic Command | United States European Command | United States Army Command and General Staff College | Apollo Command/Service Module | Air Mobility Command | United States Army Aviation and Missile Command | Unified Combatant Command | South East Asia Command | North American Aerospace Defense Command | Missile Command | command | Army Materiel Command | Air Combat Command |