Not a tanker, or military, either but it looks like going up against a real Russian tank in that thing isn't a good idea.
Russian T-14 Armata
Mass: 55 tonnes
Main armament: smoothbore cannon with 45 rounds (of which, 32 in the autoloader).
Secondary armament: 12.7mm (1⁄2 in) Kord machine gun (6P49), 7.62mm (0.30 in) PKTM machine gun (6P7К)
T-14: named for the number of them produced