>>1980391
This isn't that kind of political game, and we don't really play as the USSR but as one of the numerous socialist states in Europe, like Hungary or Poland. Czechoslovakia is the canon republic we play because that is where the Devs lived at the time, and you can see a bunch of the buildings from there in the game, like this pic at the border south of Kosice, Slovakia.
You'll just have to play Tropico in order to try communism for realsies.