Title: Uhm... I'm not doing THAT.
Summary: Add the ability for members of an army to override the marshal settings without having to leave their army.
Details: Add a toggle box to the unit settings page that when checked, will use your settings in battles instead of the Marshal settings. (Maybe) Add a notification in battle setup that __Noble__ ignored their (Vice) Marshal's orders.
Benefits: Your noble is in command of his unit, not some Marshal. You'll likely pass on the Marshal settings, so that your army fights together, but those few times you'd rather not... if your marshal has screwed up settings in the past, if you want to avoid equipment damage, let others do the fighting this time, afraid of capture (have a ban in the realm you're fighting?), or if the Marshal orders you to ignore the general army settings (to preserve your unit?)
Let the loyalist Nobles fight this battle for us, then we start the rebellion!
Possible Exploits: Not sure how I would exploit this.