This is just about a battle.
It was during an 1809 scenario, in the early phases of maneuver. I had decided to concentrate the French Army at Wurzburg and issued orders for all Corps in the area + Army HQ & Napoleon to move there. Some Austrian Corps were within marching distance so I put all my corps on Attack Orders. I did not expect it, but the main Austrian Army decided to concentrate at Wurzburg too, and they got to Wurzburg first, followed by French Corps arriving from every direction. It was like Custer's Last Stand. French lost 18k, Austrians lost 90k. It wasn't much of a campaign after that.