The vehicle is based on the hull of the T-55 tank and answers the need for a heavy, well protected and well armed vehicle adapted to urban combat.[1] The need for a heavy IFV appeared after the First Chechen War during which APCs like the BTR-80 and BMP-2 were annihilated in urban areas at the hands of Chechen rebels using RPG shoulder-launched anti-tank weapons. Consequently, the design incorporates thicker armour, with built-in reactive armour. It also has heavier armament with sufficient elevation to engage targets in multi-story buildings.