NPCs composing that spawngroup :

a_zombie (5%)

a_zombie (5%)

decaying_commander (5%)

decaying_footman (5%)

decaying_officer (5%)

decaying_swordsman (5%)

decaying_swordsman (5%)

dread_wolf (5%)

enraged_dread_wolf (5%)

fallen_advisor (5%)

fallen_advisor (5%)

risen_corporal (5%)

risen_squad_leader (5%)

skeleton_advisor (5%)

skeleton_officer (5%)

skeleton_private (5%)

skeleton_squad_leader (5%)

tainted_swordsman (5%)

undead_mendicant (5%)

zombie_commander (5%)

NPCs spawning around that spawngroup :
(Max range : 10)

None...