I loved Sudden Strike, which was the predecessor to Blitzkrieg, looks like the same engine. The only issue I had with it was when the battle(s) developed and more and more men and armor got involved it started being really difficult to manage them all at the same time. Lot of unit end up dying, because I can't issue orders fast enough in all that mayhem. Is issuing orders while the game is paused possible?
Other than that, I'd love to get that game. I remember it being fairly realistic.