NPCs composing that spawngroup :

Burynai_Excavator (33%)

Burynai_sapper (33%)

Burynai_sapper (34%)

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

kurn_1, range=54 (135,-200,5)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_2, range=48 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_5, range=86 (103,-223,-102)

greater_scalebone (100%)

kurn_7, range=72 (129,-217,-22)

kurn_10, range=92 (87,-218,-102)

kurn_30, range=55 (201,-152,-22)

kurn_31, range=56 (202,-137,-22)

kurn_32, range=17 (128,-151,-23)

Burynai_Excavator (100%)

kurn_33, range=82 (172,-225,-102)

Burynai_sapper (100%)

kurn_34, range=50 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_36, range=99 (199,-232,-102)

kurn_38, range=27 (172,-137,-104)

kurn_39, range=77 (76,-113,-105)

kurn_40, range=73 (153,-74,-104)

kurn_43, range=67 (89,-183,-102)

kurn_87, range=98 (71,-211,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_88, range=64 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_89, range=42 (151,-190,-25)

kurn_97, range=97 (128,-51,-49)

kurn_107, range=80 (121,-71,-24)

kurn_109, range=39 (143,-108,-24)

kurn_114, range=57 (162,-92,-24)

kurn_144, range=81 (75,-187,-23)

kurn_146, range=90 (60,-120,-40)

kurn_156, range=93 (66,-197,-104)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_165, range=66 (106,-200,124)

kurn_175, range=95 (52,-163,124)

kurn_178, range=41 (116,-175,124)