Here is Antietam. Jackson has captured Washington. Stuart was holding Sharpsburg but had to retreat.
I had to give up on using the Sudden Death rule, since the AI just doesn't understand the concept of Sudden Death.
And, I am trying various Objective configurations. The one that seems to be the best is the one that is very simple. That is, no more than 3 Objectives. There are 8 Strategic cities that never change. But for Objectives, Washington and Richmond are always Objectives for both sides in each scenario. And then for each scenario, you make the place name of the scenario as an Objective for both sides as well. So, Manassas, Sharpsburg, and Gettysburg. If these places are not made Objectives, both sides seem to ignore them, except Manassas.
These scenarios are real laughers, and like all BoA scenarios there is a lot of action.