Could you tell me what you edited to achive this? Is it difficulty_modifier_ai_very_hard in _kv_morale_tables ?I took out campaign difficulty bonuses for AI morale, hopefully it will be enough for non crumbling Undead. That bonus had nothing to do with battle difficulty bonuses, hence or hard (+5), very hard and legendary (both +10) AI was getting massive morale increase and it might have had even more from battle difficulty if you played on higher levels. It simply gave undead units enough flat morale increase not to crumble once the lord is dead. Also on very hard and legendary, players units were getting -5 morale penalty.