NPCs composing that spawngroup :

fire_goblin_wizard (50%)

inferno_goblin (50%)

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

soldunga_35, range=48 (-723,-543,43)

inferno_goblin (50%)
inferno_goblin (50%)

soldunga_34, range=62 (-723,-561,43)

soldunga_33, range=17 (-752,-492,57)

inferno_goblin_wizard (100%)

soldunga_31, range=87 (-756,-595,57)

soldunga_21, range=23 (-781,-506,57)

inferno_goblin_shaman (100%)

soldunga_19, range=93 (-846,-538,43)

soldunga_15, range=95 (-850,-485,22)

fire_goblin (50%)
inferno_goblin (50%)

soldunga_14, range=92 (-809,-432,38)

soldunga_13, range=79 (-809,-448,38)

fire_goblin_wizard (50%)
inferno_goblin (50%)

soldunga_5, range=91 (-787,-422,57)

Solusek_goblin (50%)
Solusek_priest (50%)

soldunga_91, range=41 (-782,-475,57)

soldunga_92, range=64 (-722,-562,57)

fire_goblin (50%)
fire_goblin (50%)

soldunga_97, range=71 (-753,-437,57)

goblin_merchant (100%)