The Authorities' tanks are armored tanks equipped with a high-power cannon.

A huge, armored tank rolled toward the barricade, its heavy guns rotating toward their target. The rebels shouted and pointed at it, shooting rapidly at the giant tank. To their horror, the bullets bounced off the thick, reinforced armor without leaving even a dent or a scratch.... The main turret on the tank moved, aiming at the barricade. A low hum came from the weapon. With a burst of light and sound, the tank fired, and a bolt streaked through the air. It hit the barricade and an enormous explosion erupted.

– Fallen Nation