Good practice for E:TW

http://mofunzone.com/download_games/take_command_2nd_manassas.shtml
I got this game a while ago and since Empire: Total War won't work for my comp, I'm playing this.

It's a Civil War game. Still, the same concept applies.

In a way, it is sort of in the same time period and it is large scale from what I can tell. The units also carry on from battle to battle I see, so there is certainly some resemblance.