Fort Retreat Survival --> call for discussion

[Sombre]

Mindless undead survive retreat orders? This is news to me. I thought they exploded.

I don't get why it bothers you so much. You can still surround, cut off and kill the defenders. If they just sit there doing nothing,.. who cares? The fort isn't recruiting, the province income is going to the occupying force,.. I don't see that as a big advantage to the player being sieged. No sensible player is going to waste the time of his main army sieging your fort.

It seems like you might be thinking of SP where the AI will simply stop dead at a fort. I would think there that the power of call of the winds as a defensive tool was far more of a problem than being able to retreat safely when they storm.