NPCs composing that spawngroup :

a_dangerous_mine_rat (50%)

a_goblin_taskmaster (50%)

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

nurga_8, range=66 (-1557,-4,-189)

a_goblin_taskmaster (50%)
a_goblin_taskmaster (50%)

nurga_11, range=99 (-1548,-72,-189)

a_goblin_spirit_mystic (100%)

nurga_121, range=57 (-1608,-63,-189)

a_goblin_flame_dancer (50%)
a_goblin_spirit_lord (50%)

a_goblin_warder_189531, range=37 (-1587,4,-187)

a_goblin_warder (100%)

va_nurga_508009, range=37 (-1587,4,-188)

va_nurga_508013, range=24 (-1609,-27,-188)