NPCs composing that spawngroup :

Burynai_burrower (25%)

Burynai_Excavator (25%)

Burynai_excavator (25%)

Burynai_Excavator (25%)

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

kurn_1, range=81 (135,-200,5)

greater_skeleton (100%)

kurn_2, range=85 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_7, range=97 (129,-217,-22)

kurn_31, range=15 (202,-137,-22)

kurn_32, range=72 (128,-151,-23)

Burynai_Excavator (100%)

kurn_33, range=78 (172,-225,-102)

Burynai_sapper (100%)

kurn_34, range=70 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_36, range=79 (199,-232,-102)

kurn_37, range=55 (146,-147,-104)

kurn_38, range=32 (172,-137,-104)

kurn_40, range=91 (153,-74,-104)

kurn_88, range=82 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_89, range=62 (151,-190,-25)

kurn_109, range=72 (143,-108,-24)

kurn_114, range=71 (162,-92,-24)

kurn_178, range=88 (116,-175,124)