The thing is that there's no way for me to make the AI actually help/not help when it's joined the war. The military AI can at times be dismal.Sorta, but why not give the player a chance get involved and let them do things? Let's throw in some new ideas to differentiate the two. Maybe instead of loot, the pagan faction joining the war gets a relationship bonus, prestige, etc. Or maybe they get a title/ land of the people they helped conquer?
Also, I always felt hiring mercenaries should carry some risk, and they currently don't do anything beyond fight for you loyally. Mercenaries often did what they wanted regardless of who was paying them, so having the ability to involve an existing pagan faction would simulate that. The horde you brought in ends up getting claims on your territory, since they fought for the land and liked it, or maybe they just go a pillaging spree.
The basis for this idea is that it gives the player more chance to influence things, and that is always fun for everyone.
Mercs do bring risk, but only if you go bankrupt. Which only happens once in a blue moon since apparently there were essentially no expenses in Medieval times going by CKII.
VIET does stuff with the music, so that might be the cause.Ah, ok, thanks.
Another question: I suspect Hymns of the Old Gods isn't working. I'm running PB+ARKO+CPR in this game. Playing as a norse, but the norse songs never actually start, not even when I start the game. They work in vanilla without mods, though.