NPCs composing that spawngroup :

#Overseer_Henxsa (20%)

a_goblin_overseer (80%)

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

nurga_102, range=33 (-1098,179,-189)

a_goblin_overseer (50%)
a_goblin_overseer (50%)

nurga_104, range=174 (-1147,377,-189)

a_goblin_death_knight (50%)
a_goblin_spirit_chanter (50%)

nurga_123, range=157 (-1278,202,-189)

a_goblin_death_knight (50%)
a_goblin_overseer (50%)

nurga_125, range=60 (-1151,151,-189)

#Overseer_Pruckib (100%)

nurga_183, range=169 (-1113,373,-189)

a_goblin_blackguard (50%)
a_goblin_death_knight (50%)

nurga_185, range=43 (-1154,233,-189)

a_goblin_flame_chanter (50%)
a_goblin_spirit_chanter (50%)

nurga_186, range=75 (-1186,166,-189)

a_goblin_death_caster (50%)
a_goblin_flame_chanter (50%)

a_tortured_slave_189519, range=62 (-1118,142,-189)

a_tortured_slave (100%)

a_fainted_slave_189521, range=40 (-1144,237,-189)

a_fainted_slave (50%)
a_weakened_slave (50%)

a_Sarnak_slave_189528, range=55 (-1158,163,-189)

a_Sarnak_slave (100%)

nurga_a_goblin_warder0_takp_import_v0, range=193 (-1129,397,-188)

nurga_a_goblin_slavedriver1_takp_import_v0, range=41 (-1122,245,-188)

nurga_a_goblin_backbiter5_takp_import_v0, range=167 (-1132,371,-188)

nurga_an_Iksar_slave79_takp_import_v0, range=55 (-1158,163,-189)

nurga_a_tortured_slave81_takp_import_v0, range=40 (-1144,237,-189)