It's a simple concept: all factions of a given race are fully confederated by Turn 1. So, for instance, all Empire factions start confederated under Karl Franz, assuming you didn’t pick a different lord. Horde factions are included as well.

I’d make this mod myself, but I don’t know how to mod, so either someone can make it, or teach me how to do it.

Frankly, I just want to see what the AI will do and which race comes out on top most of the time.