NPCs composing that spawngroup :

a_crazed_ghoul (50%)

a_ghoul (50%)

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

unrest_a_ghoul4, range=10 (494,-71,5)

unrest_tormented_dead2, range=81 (568,-97,4)

unrest_a_skeletal_monk9, range=50 (545,-60,19)

a_skeletal_monk (100%)

unrest_dark_boned_skeleton91, range=23 (518,-57,5)

unrest_a_lurking_mummy92, range=67 (562,-52,6)

unrest_222219, range=55 (511,-114,1)

a_death_beetle (100%)

unrest_222222, range=67 (546,-17,3)

unrest_222224, range=90 (572,-14,47)

a_dry_bone_skeleton (50%)
a_reanimated_hand (50%)

unrest_224010, range=79 (571,-38,20)

a_carrion_ghoul (70%)
a_skeletal_monk (30%)

unrest_224012, range=84 (554,0,47)

unrest_224023, range=87 (582,-62,-10)