https://www.planetminecraft.com/project/1-5-1-scale-bmd-4-ifv/


A complex of research aimed at increasing the combat effectiveness of the Soviet airborne combat vehicle named "Bakhcha-U" was carried out in the Tula Instrument Design Bureau in the second half of the 90’s. As a result of the research, the Volgograd Tractor Plant presented an experimental BMD-4 combat vehicle with the Bakhcha-U module, which was put into service on the last day of 2004. An experimental batch of 60 vehicles was delivered to the 137th Guard Paratrooper Regiment for testing. Compared to the BMD-3, the new vehicle significantly surpassed it in terms of combat effectiveness and technical characteristics.

Much attention was paid to the complex of anti-tank armament - a 100mm cannon-launcher could use guided missiles, including missiles with a tandem warhead. During the tests of the pilot batch, the manufacturer went bankrupt and Kurganmashzavod continued work on the vehicle. During the modernization, an improved version of the IFV was created, which entered service with the Russian army under the name BMD-4M.

taken from War Thunder wiki,
https://wiki.warthunder.com/BMD-4