NPCs composing that spawngroup :

a_goblin_watcher (100%)

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

warslikswood_79, range=65 (-2318,804,191)

a_goblin_scout (50%)
a_goblin_whelp (50%)

warslikswood_86, range=91 (-2405,713,267)