The MT-LB (Multipurpose Light Armored Transporter-Tractor, Object 6) is a Soviet and Bulgarian fighting vehicle, a multipurpose floating armored personnel carrier (APC).
The multi-purpose transporter was designed to transport (carry) people and cargo, and is also widely used as an artillery tractor (although it was not intended for this role, unlike the BTR-40, BTR-152, BTR-50, and BTR-60 armored vehicles previously adopted for service).
1)start the engine on "M"
2) you can drive on "B"
3)you can shoot on "P"