NPCs composing that spawngroup :

a_deadly_skeletal_sailor (50%)

a_pestilent_troll_zombie (50%)

NPCs spawning around that spawngroup :
(Max range : 200)

gunthak2240018, range=171 (-866,-666,19)

gunthak2240341, range=51 (-664,-742,19)

a_pestilent_troll_zombie (50%)
a_pestilent_troll_zombie (50%)

gunthak2240363, range=64 (-687,-805,19)

a_deadly_skeletal_sailor (50%)
a_savage_skeletal_sailor (50%)

gunthaka_savage_skeletal_sailor01015132880, range=105 (-666,-840,18)

1_an_erudite_spirit (0%)
a_savage_skeletal_sailor (100%)