NPCs composing that spawngroup :

a_goblin_death_caller (100%)

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

nurga_113, range=35 (-1061,-602,-173)

a_goblin_sneak (50%)
a_goblin_sneak (50%)

nurga_121, range=33 (-1089,-628,-173)

a_goblin_flame_dancer (50%)
a_goblin_spirit_lord (50%)

nurga_151, range=73 (-1035,-567,-173)

a_goblin_blood_knight (100%)

nurga_154, range=81 (-1123,-589,-173)

a_goblin_sneak (50%)
a_goblin_taskmaster (50%)

nurga_155, range=47 (-1064,-684,-173)

a_goblin_blood_knight (50%)
a_goblin_blood_knight (50%)

va_nurga_508003, range=31 (-1088,-631,-170)

va_nurga_508058, range=4 (-1057,-633,-172)