NPCs composing that spawngroup :

Braxter (100%)

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

befallen_31, range=95 (-164,80,-9)

a_giant_rat (50%)
a_plague_rat (50%)

befallen_30, range=89 (-148,94,-11)

befallen_29, range=97 (-136,118,-10)

befallen_25, range=82 (-159,47,-5)

a_plague_rat (100%)

befallen_6, range=91 (-140,-26,4)

befallen_2, range=85 (-77,-45,3)

a_putrid_skeleton (50%)
a_sturdy_skeleton (50%)

befallen_125, range=15 (-77,25,3)