NPCs composing that spawngroup :

a_filthy_rat (50%)

a_kobold_outcast (50%)

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

warrens_a_howler38, range=66 (665,345,-110)

a_howler (100%)

warrens_a_kobold_outcast154, range=96 (722,394,-106)

a_kobold_outcast (100%)

warrens_a_diseased_kobold155, range=4 (714,294,-111)

a_diseased_kobold (100%)

warrens_223471, range=72 (672,237,-88)

warrens_223474, range=92 (695,207,-88)

a_kobold_archer (50%)
a_rabid_kobold (50%)

warrens_223475, range=69 (748,238,-101)

warrens_223478, range=90 (772,230,-101)

a_kobold_protector (50%)
a_kobold_sentinel (50%)

warrens_223479, range=65 (680,241,-87)

warrens_223502, range=90 (633,342,-109)