Here's an idea. How about the abililty to replay any famous battles that you fight in campaigns. So when you have either won or lost a battle, and it will be represented on the map as crossed swords, then you will be able to click on the swords and se a replayed battle. But it requires that you decides to save the battle, when the final panel comes. That way you can see the great battles you won, and choose to ignore the battles you lost.
Your thought, please.