NPCs composing that spawngroup :

Burynai_Excavator (33%)

Burynai_excavator (33%)

Burynai_excavator (34%)

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

kurn_1, range=91 (135,-200,5)

greater_skeleton (100%)

kurn_2, range=94 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_30, range=15 (201,-152,-22)

kurn_32, range=74 (128,-151,-23)

Burynai_Excavator (100%)

kurn_33, range=92 (172,-225,-102)

Burynai_sapper (100%)

kurn_34, range=60 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_36, range=94 (199,-232,-102)

kurn_37, range=56 (146,-147,-104)

kurn_38, range=30 (172,-137,-104)

kurn_40, range=79 (153,-74,-104)

kurn_75, range=99 (248,-49,-118)

Burynai_sapper (50%)
lesser_icebone_skeleton (50%)

kurn_76, range=98 (223,-41,-118)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_88, range=71 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_89, range=73 (151,-190,-25)

kurn_109, range=65 (143,-108,-24)

kurn_114, range=60 (162,-92,-24)

kurn_178, range=94 (116,-175,124)