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.
Four Tank-Men and a Dog
Czterej pancerni i pies (, "Four tank-men and a dog") was a Polish black and white TV series based on the book by Janusz Przymanowski. Made between 1966 and 1970, the series is composed of 21 episodes of 55 minutes each, divided into three seasons. It is set in 1944 and 1945, during World War II, and follows the adventures of a tank crew and their T-34 tank in the 1st Polish Army. The book and TV series have achieved and retain a cult series status in Poland, the Soviet Union and other Eastern Bloc countries.