NPCs composing that spawngroup :

Burynai_excavator (34%)

Burynai_sapper (33%)

lesser_icebone_skeleton (33%)

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

kurn_1, range=73 (135,-200,5)

greater_skeleton (100%)

kurn_2, range=71 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_7, range=90 (129,-217,-22)

kurn_30, range=32 (201,-152,-22)

kurn_31, range=30 (202,-137,-22)

kurn_32, range=45 (128,-151,-23)

Burynai_Excavator (100%)

kurn_33, range=87 (172,-225,-102)

Burynai_sapper (100%)

kurn_34, range=42 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_36, range=98 (199,-232,-102)

kurn_37, range=27 (146,-147,-104)

kurn_39, range=98 (76,-113,-105)

kurn_40, range=65 (153,-74,-104)

kurn_43, range=94 (89,-183,-102)

kurn_88, range=56 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_89, range=56 (151,-190,-25)

kurn_97, range=96 (128,-51,-49)

kurn_107, range=83 (121,-71,-24)

kurn_109, range=41 (143,-108,-24)

kurn_114, range=46 (162,-92,-24)

kurn_165, range=91 (106,-200,124)

kurn_178, range=67 (116,-175,124)