NPCs composing that spawngroup :

Burynai_Excavator (34%)

greater_scalebone (33%)

greater_skeleton (33%)

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

kurn_3, range=47 (-73,-311,-23)

kurn_7, range=53 (-90,-254,3)

kurn_8, range=78 (-119,-272,4)

kurn_12, range=91 (50,-285,-97)

kurn_29, range=68 (-65,-212,3)

kurn_41, range=91 (48,-299,-97)

Burynai_sapper (100%)

kurn_73, range=79 (-108,-233,-23)

kurn_80, range=74 (-72,-208,-23)

kurn_83, range=38 (-58,-310,-23)

kurn_84, range=81 (-118,-304,-23)

Burynai_Excavator (50%)
Burynai_Excavator (50%)

kurn_85, range=77 (-33,-353,-23)

kurn_113, range=64 (-87,-231,-22)

Burynai_burrower (50%)
Burynai_excavator (50%)

kurn_131, range=67 (-108,-268,-23)

kurn_137, range=70 (-103,-310,-22)

kurn_138, range=66 (-50,-210,-23)

kurn_142, range=71 (-20,-208,-23)

Burynai_burrower (50%)
greater_scalebone (50%)

kurn_143, range=99 (-27,-177,-23)

kurn_161, range=69 (0,-221,90)

greater_scalebone (90%)
undead_crusader (10%)

kurn_163, range=65 (-10,-218,132)

kurn_164, range=60 (-83,-232,123)

kurn_165, range=94 (34,-219,132)

kurn_166, range=76 (32,-253,132)

kurn_169, range=41 (0,-270,132)

kurn_171, range=86 (-83,-200,123)

kurn_173, range=76 (-55,-201,88)

kurn_181, range=30 (-71,-277,4)

kurn_276925, range=58 (-50,-219,134)

greater_skeleton (90%)
undead_crusader (10%)

kurn_276926, range=60 (-28,-218,134)

greater_scalebone (90%)
undead_crusader (10%)