1)I don't like the new map along the bottom. Makes it very hard to see and control units. Is that new? I don't remember it being a problem before.
2) As others have mentioned I would like a way to combine veteran brigades without having to disband them completely.
3) I would like to see Chattanooga added as a major battle - between Chickamauga and the overland campaign. There are several skirmishes to open a supply line to feed the trapped Union army including cavalry battles and a rare night battle. I'd love to see Lookout Mountain modeled in game.
4) I would like to see more skirmish-level battles in general