NPCs composing that spawngroup :

a_goblin_blackguard (50%)

a_goblin_overseer (50%)

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

nurga_94, range=71 (-1549,1634,-300)

a_goblin_blackguard (50%)
a_goblin_death_caster (50%)

nurga_102, range=59 (-1475,1539,-300)

a_goblin_overseer (50%)
a_goblin_overseer (50%)

nurga_126, range=53 (-1477,1549,-300)

a_goblin_spirit_chanter (100%)

nurga_160, range=72 (-1568,1506,-300)

a_goblin_death_caster (50%)
a_goblin_spirit_chanter (50%)

nurga_164, range=39 (-1496,1589,-300)

nurga_165, range=74 (-1458,1590,-300)

a_goblin_death_caster (50%)
a_goblin_spirit_chanter (50%)

nurga_166, range=97 (-1451,1507,-300)

va_nurga_508003, range=3 (-1525,1565,-300)

va_nurga_508009, range=73 (-1567,1504,-300)

va_nurga_508013, range=99 (-1447,1508,-300)