No need for "ironman" mode or anything, this isn't a competitive ranked game or anything. I want to be able to go back into the different phases of the battle and replay them, and also be able to choose different things during the planning stage. As Confederates after encircling the Feds in phase 2 of the battle, I had the choice between pressing the attack or waiting for reinforcements. I chose to wait for reinforcements and won a defensive battle against the Union troops and got an Epic Victory. It'd be cool to go back and see how I would do if I had chosen to attack immediately instead of waiting, since replaying the whole game would lead to a different result obviously.