Attilean Factions Unlock Simple mod for Total War: Attila.
I bring you factions unlock simple Attila. It unlocks Attila and Charlomagne minor factions just in custom battle.
(Note that the factions selection chart displays only downwards and not sidewards, which causes not all the factions in Attila campaign to actually be selectable, even though being actually unlocked.
It’s an effect of configuration I unfortunately can’t fix.)
This mod doesn’t interfere with those that unlock factions in campaign.