ORIGINAL: gunnergoz
How about a module where we can set up detailed battles without playiing the strategic mode at all? Just for practice or for fun? It would be a nice way to try out some battlefield scenarios too. Mainly, I'd like to practice more detailed battles to get the hang of them, without losing a war that I worked hard on the strategic side to get right.
Since that's something that would take time to produce, my advice for now is to build up your army by playing for a year or so, get in a position where you have armies/corps/divisions close to the enemy, save the game, and keep restarting from that save game, each time trying battles in different places, on different terrain, etc. It's not the same thing you propose, but simply by doing a SAVE AS from your main game you can create new game for experimenting.