NPCs composing that spawngroup :

a_kobold_archer (50%)

a_kobold_sentry (50%)

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

warrens_31, range=90 (413,-446,-71)

a_kobold (100%)

warrens_69, range=38 (404,-562,-76)

a_rabid_kobold (50%)
a_rabid_kobold (50%)

warrens_106, range=82 (404,-456,-74)

warrens_189, range=14 (416,-535,-78)

warrens_191, range=88 (387,-611,-75)

warrens_192, range=84 (437,-618,-76)

a_kobold_archer (50%)
a_kobold_sentinel (50%)

river_source_189687, range=73 (357,-532,-98)

river_source (100%)