I've just started playing a "Play-by-Email" game with a friend of mine in which I am the Germans and he is the SU. It'll take a while to get a feel for if it's balanced, but from what I can tell this scenario hasnt been tested human vs human. We tried playing it using the "Hotseat" mode, but due to the long time for turns, it didnt work too well. I'll post results, but I've just finished my first turn as the Germans (took 2 cities, goanna take at least 2 next turn and got 2 Great Leaders [used 'em for Corps]). From what we discovered in the "Hotseat" game, if the German player spends lots of time bombing the Russian rail/roads then Germany can take 6 or 7 cities before the Russians can bring up many reserves. As the SU against the AI, I dont think the AI bombed ANY of my rail/roads.