I cornered Hannibal's army with my 2 armies on the campaign map. I click let this army be controlled by the AI and go to the battle, but then the reinforcements aren't controlled by the ai; they're just given to me after i lose a unit card and make room for the reinforcements. I can i make it so that the reinforcements are controlled by the AI because I did check let this army be controlled by the computer but then it doesn't work.