The Soviets separated their offensive phases into two basic stages:
1. Breakthrough
2. Exploitation
The Breakthrough involved eliminating Axis fortified lines of defense. It was considered over when the zone was smashed and cleared of enemies. The Soviets generally used rifle corps (1944) to do this, supported by self-propelled guns (like SU-76, SU-122 and larger) and heavy tank units like the IS-2. If the enemy defense was too strong, they deployed their tank armies, tank corps, and mech. corps early.
IS-2 was a breakthrough tank and designed to be in the first echelon. Its gun was good against fortifications and it could eliminate armored reserves that attempted to intervene. It was NOT a tank hunter. The Soviet dedicated tank hunters were generally the SU-85/SU-100 and the ISU/SU-152 regiments in late 1944.
Exploitation occurred after a clean breakthrough. This is where the tank units with their SPG support were pushed through the gap. Most were T-34s (with some lend lease shermans) supported by SPG units.
-
I dont think IS-2 was really a Battle tank and more of a Break-through tank.
correct me if im wrong