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 432
Tank 432 (originally Belly of the Bulldog) is a 2015 British psychological horror film written and directed by Nick Gillespie. Gillespie had previously collaborated with Ben Wheatley, who executive produced. Rupert Evans, Deirdre Mullins, Steve Garry, Michael Smiley, April Pearson, and Gordon Kennedy, Tom Meeten, and Alex March star. Evans, Mullins, Garry, Smiley, Kennedy, Meeten portray mercenaries tasked with transporting a hostage (Pearson) and survivor (March) across a battlefield. Along the way, the mercenaries become trapped in an abandoned armoured personnel carrier they enter as refuge against an unseen enemy. (Despite the film's title, the vehicle portrayed is not a tank but a Type 432 armoured personnel carrier, a vehicle used to deploy infantry. The 432 was known in British Army service as the Bulldog, hence the two alternative film titles.) It premiered at the Fantasia International Film Festival and has a Rotten Tomatoes score of 17%.