NPCs composing that spawngroup :

orc_oracle (100%)

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

lfaydark_orc_centurion8, range=40 (-556,1679,0)

lfaydark_orc_chief0, range=69 (-521,1683,0)

orc_chief (50%)
orc_legionnaire (50%)