Can I change difficulty in-game or do I have to wait until I start a new one for Campaign AI settings to take effect? I really like my current progress but I'm tired of seeing parties of 25 Swadian Knights (out of like 55 soldiers, it's absurd)? Same thing goes for other changes (damage modifiers, Battle AI, etc.), although I assume that, since they only affect battles, they can be changed and take effect in the next battle.