1/100 KVS-2 turret, 150mm cannon

Though the T-86 was designed primarily as a multi-turret tank, when it went into production as the KVS-2, the 120-tonne tank could easily be configured around a single large-scale weapon such as this 150-mm cannon. Without the weakness of corner turrets, a KVS-2 with this configuration could continuously lob massive shells at enemy forces while also being completely invulnerable to the vast majority of ground weapons.