On the face of it, this is just absurd. Far lighter Bradley Fighting Vehicles equipped with 25mm guns, a glorified, albeit deadly machine gun (or more accurately, "chain gun") should have stood no chance against the Russian-made T-90 with its 125mm cannon. The 25mm guns just don't have enough firepower to pierce the heavy armor of the 45-ton T-90 (or so we've been told) while the Russian tank can level multi-story buildings.