NPCs composing that spawngroup :

a_drolvarg_sentry (70%)

skeletal_guardian (15%)

skeletal_guardian (15%)

NPCs spawning around that spawngroup :
(Max range : 100)

karnor_a_drolvarg_sentry6, range=81 (190,-532,38)

a_drolvarg_sentry (50%)
a_drolvarg_sentry (50%)

karnor_skeletal, range=75 (176,-425,5)

karnor_223363, range=32 (157,-489,-35)

karnor_223366, range=99 (92,-574,-44)

karnor_223368, range=95 (189,-409,45)

karnor skeletal warlord, range=90 (103,-569,38)

karnor skeletal berserker, range=90 (176,-406,3)