Tank
With World War II the multi-turreted tanks proved impracticable, and as the single turret on a low hull design became standard, crews became standardized around a crew of four or five. In those tanks with a fifth crew member, usually three were located in the turret (as described above) while the fifth was most often seated in the hull next to the driver, and operated the hull machine gun in addition to acting as a co-driver or radio operator. Well-designed crew stations, giving proper considerations to comfort and ergonomics, are an important factor in the combat effectiveness of a tank, as it limits fatigue and speeds up individual actions.
BMPT Terminator
The rear of the driver's compartment, at the front of the vehicle, has been raised, providing greater internal volume. It uses proven elements from those fitted to the T-90 MBT. The Terminator has a crew of five which consists of: a vehicle commander, a driver, a gunner, and two grenade launcher operators. NBC protection is provided to the crew to ensure survival against radiation, chemical and biological weapons. As an option, the BMPT can be fitted with mine-clearing devices such as the KMT-7 or KMT-8 mine sweepers. T-72 tanks can be also converted into BMPT.