NPCs composing that spawngroup :

a_goblin_death_knight (25%)

a_goblin_flame_chanter (25%)

a_goblin_flashdrowser (25%)

a_goblin_warder (25%)

NPCs spawning around that spawngroup :
(Max range : 200)

nurga_94, range=151 (-1549,1634,-300)

a_goblin_blackguard (50%)
a_goblin_death_caster (50%)

nurga_102, range=44 (-1475,1539,-300)

a_goblin_overseer (50%)
a_goblin_overseer (50%)

nurga_126, range=47 (-1477,1549,-300)

a_goblin_spirit_chanter (100%)

nurga_160, range=142 (-1568,1506,-300)

a_goblin_death_caster (50%)
a_goblin_spirit_chanter (50%)

nurga_163, range=101 (-1528,1566,-300)

a_goblin_blackguard (50%)
a_goblin_overseer (50%)

nurga_164, range=82 (-1496,1589,-300)

nurga_165, range=57 (-1458,1590,-300)

a_goblin_death_caster (50%)
a_goblin_spirit_chanter (50%)

nurga_166, range=39 (-1451,1507,-300)

nurga_168, range=121 (-1316,1497,-293)

a_goblin_death_caster (50%)
a_goblin_overseer (50%)

nurga_a_goblin_slavedriver1_takp_import_v0, range=98 (-1525,1565,-300)

nurga_a_goblin_backbiter5_takp_import_v0, range=2 (-1431,1538,-300)

nurga_a_goblin_stalagknight9_takp_import_v0, range=141 (-1567,1504,-300)