New Soviet vehicles feedback topic

Tanitha: Please feel free to provide feedback on the new Soviet vehicles in the 7.3 V2 public test.
Changes in the Soviet heavy tanks:
KV-3 moves from tier 6 to tier 7.
IS-4 moves from tier 9 to tier 10.
KV is divided into KV-1 and KV-2.
T-150 is added as a tier 6 heavy tank.
KV-4 is added as a tier 8 heavy tank.
ST-I is added as a tier 9 heavy tank.
T-10 (IS-8) is added as a tier 9 heavy tank.