The Soviets have many options including Lend Lease Shermans and Valentines. I did not go with that option as I have neither spare vehicles to use and if I had Sherman tanks they would be used by the British.
The other Ruskie options are more interesting and include:
Assault Guns ISU122/152 and the SU 100/122/152
Heavy Tanks including the IS-2
Medium Tanks T34/85
Light Tank like the T-70
APC and Carriers such as the M3, White Scout Car and Universal Carriers
Of these I lean a little to the Assault Guns and T-34/85. Both are famous for action in the east and latter the Middle East and Africa, positive points for me. I also like the White Scout Car and Carriers for similar reasons; and none of this will effect my military budget as I have all of this in house.
IS-2
T-34/85
SU-152 (A great door opener)
ISU-122/152 (An even better door opener.)
White Scout Cars
Universial Carriers built and painted
The winner for me is the SU-152 or ISU-122/152 as I had models of these as a kid but I will try to build them all.
So any thoughts of the best choices for the Soviets in Cain of Command?