If realism and historical accuracy is your goal then not at all. For starters who's fluid in tank tactics 1939-45 style? Hardly anyone. Would players stick to these tactics? Nope. Can historical strengths and weaknesses be depicted? Nope.
The thing is any kind of human involvement in the ground war will end in some kind of brawl, inevitable leading to a stalemate of some kind. Quite honestly I'd prefer more FMB control over the ground AI (like telling artillery which area to shell and when, telling tanks when to advance in which formation at what speed etc etc).
