An assault by enemy tanks and APCs is repelled by the 4th Operational Brigade of the Ukranian National Guard.

I thought so at first too. The tank doing the shooting was the first to explode at the head of the line. I think it's an auto-loader and something is resting on the fire control as the gun fires 2 times at nothing (the 'FF' doesn't actually hit the other tank it hits ahead of it by about 5 m to the left) and the turret doesn't move between shots.