I am playing as Hochland and I had Count Aldebrand take a city from rebels (Midden-something?). Before the battle I checked his command rating and it was at 9. Then when I started the battle and was brought to the preparation screen (Assault/Maintain Siege/Cancel Siege) he had a command of 10. I was confused but continued. After winning the battle his command went down to 8! I re-loaded and tried again and then it went to 7. So I reloaded and tried AGAIN and at the end of the battle it went back to 8.

I'm so confused