I fired it up recently.
I always played "quick battle" and I know it gets more in depth when you do detailed battles, but I have never really been a detailed battle person - I like being more of a general type and move troops to the battles and let the individual commanders do the dirty detail work.
Anyway, the issue I always have had is with quick battle, there seems to be a level where you can't beat it, imo, because you just lose to many men per battle and eventually the attrition just wears you down - this is with the US.
Good game overall and I got my money's worth, though. If Ageod's Civil War didn't have the supply engine it has, it would be my utmost favorite no questions asked. I don't like having to deal with all the supply issues, though. If I had wanted to do that, I would have joined the army as a logistics personnel!!!