NPCs composing that spawngroup :

gnomish_miner (100%)

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

soldunga_71, range=72 (-365,-778,43)

soldunga_70, range=90 (-357,-758,43)

cinder_goblin (50%)
young_goblin (50%)

soldunga_117, range=94 (-519,-782,48)

gnomish_miner (50%)
gnomish_miner (50%)

soldunga_147, range=91 (-493,-746,45)

CWG_Model_CA (100%)

soldunga_150, range=36 (-419,-777,41)

CWG_Model_MA (50%)
CWG_Model_XC (50%)

soldunga_151, range=79 (-460,-885,40)

soldunga_152, range=57 (-435,-869,39)

soldunga_153, range=88 (-387,-890,41)

soldunga_155, range=67 (-441,-746,31)

soldunga_156, range=8 (-429,-804,41)