DLC2: Soviet and Austria-Hungary ( If this country's name has aggressive meanings to some people especially those who live in that region, please tell me, and I will delete this idea immediately.)
No need for extra talk for the Soviets. However, I do want to add T-44 and SU-100Y to give this faction some extra fun. The reason that I think Austria-Hungary will be a good faction is that countries like Hungary, Czechoslovakia, and some other pre-AH nations had some really interesting tanks and small arms but just too few to build as a single nation. Combining them together could make into a good faction.
T-44 think acceptable. A number of descriptions of the combat route of 100 Czestochowa Tank Brigade indicate that in December 1944 - January 1945, it received 60 T-44 tanks, as some historians confirm the T-44 front-line tests.
SU-100Y, was used during the Defense of Moscow, so if the game is based on early years, of course. It will be the early years JagdTiger.
If you look at the Hungarian operations, then one of the most important roles was in the SU-100, they perfectly prove themselves against the King of Tiger attack.