[Saulot]

99 is a special number, which functions as gone berserk (never flee).
50 is mindless, 30 is standard unbreakable (flee when whole army flees).

Edit:
I'm still on the fence as to whether they should be mindless or not. The concept in question for the Cursed Ones having a fragmented mind could be argued either way, and I'm not terribly opposed to them dissolving, though it does change the balance up and down in more subtle ways as well. Future comments and further reflection may bring a stronger conclusion.