You'd think the Undead would not be able to organize a sizable rank of undead Archers to attack in a coordinated manner UNLESS they were directed by a living intelligent leader, smells like the Crown Collector controlling them! The Undead usually act at an instinctive level, often Action-Reaction type depending on their emotional state when they were still in a living state just before being 'UnDead' just saying.
!popcorn