Tank
Most modern tanks most often have four crew members, or three if an auto-loader is installed. These are the:
Historically, crews have varied from just two members to a dozen. For example, pre-World War II French tanks were noted for having a two-man crew, in which the overworked commander had to load and fire the gun in addition to commanding the tank. First World War tanks were developed with immature technologies; in addition to the crew needed to man the multiple guns and machine guns, up to four crewmen were needed to drive the tank: the driver, acting as the vehicle commander and manning the brakes, drove via orders to his gears-men; a co-driver operated the gearbox and throttle; and two gears-men, one on each track, steered by setting one side or the other to idle, allowing the track on the other side to slew the tank to one side.
Tank (video game)
"Tank" is a two-player maze game in which the players, each controlling a tank, attempt to shoot each other. The maze is a set of blocks set at right angles to each other with an empty square central area all viewed from above; the shape of the maze is not symmetric, and is the same between games. One of the tank sprites is white and the other is black, while the central area is filled with black X marks representing land mines. The tanks can fire shells, which destroy the other tank if they hit; tanks are also destroyed if they hit a land mine. The destruction of a tank grants the opposing player a point and causes a brief explosion and accompanying sound, during which time the other tank cannot shoot, before restoring the tank at the same position. Destroyed land mines do not return. Points are displayed above the play area, and flash during the final twenty seconds of the round. The game continues until the time runs out, after which the player with the higher point value wins the match. Each game typically costs a quarter and lasts for 60 seconds, but an internal toggle adjusts it to two quarters and 120 seconds. The time can be further adjusted by operators.