Krch, I don’t know who might need it, but if there are mods on the Internet that remove the Huns for good, then this one, mb, will suit someone.
Total War: Attila: Cheat (Humiliated Huns) Free Download
He took the mod on the weakened Huns as a basis. Basically, it just increased the faction debuff. Huns have -100% to economy, + 300% upkeep of troops, recruitment, replenishment and morale are also reduced. Set a movement penalty of 100, although I did not check this item.
In the end, I tried to make sure that the campaign map did not look like a doomsday map. Huns are now whipping boys (in any case, they should be), on which you can calmly pump your generals.
I am not a modder, so download at your own peril and risk.