In War 2 Victory there are two types of Heavy Tanks IS-3 and there is also the King Tiger, There is almost no difference between these two unit types other than the way they look. IS-3 is for the Allies and King Tiger is for the Axis.
Heavy Tanks are used as a blunt unit to break through the enemy front lines and advance along with other troops. These types of units are common among medium experienced players.
Heavy Tanks work great with artillery support from Rockets or SPGs
Heavy Tanks also work great with infantry support or AV support
These units are great at being a blunt ofeensive weapon to hit the enemy front lines as hard as possible