NPCs composing that spawngroup :

Bubonian_Death_Caster (72%)

Bubonian_Great_Mystic (72%)

Bubonian_Mystic (60%)

Bubonian_Warlord (72%)

Bubonian_War_Rat (55%)

Crazed_Bubonian_Berzerker (72%)

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

codecay2000013, range=96 (646,-64,-68)

codecay2000014, range=71 (681,-68,-67)

codecay2000095, range=85 (800,-127,-64)

codecay2000096, range=82 (794,-108,-65)

codecay2000108, range=44 (759,-130,-64)

codecay_282435, range=82 (797,-123,-63)

an_old_fly_nest (72%)
a_fly_swarm (72%)