the IS or JS(it stands for Josef Stalin) 2 is a sovjet heavy tank designed in WW2. it was the sovjet union's answer to the german heavy tanks toghetter with the T-34-85. it was armed with a 122mm main gun, one of the best main cannons at the time. with thick armor, it was a rare but powerfull beast on the battlefield.
this tank is gunless as-is but does have internal hovers already added to it. you can mount any weapon you want but i advice disintregrators for good firepower at all ranges and against any target.