NPCs composing that spawngroup :

a_shrouded_willsapper (100%)

NPCs spawning around that spawngroup :
(Max range : 200)

griegsendWailing_Mercenary00037584067, range=156 (30,2000,-56)

a_tormented_mercenary (90%)
Wailing_Mercenary (10%)

griegsend1304249, range=181 (233,1936,-64)

a_defiled_dreamweaver (50%)
a_tormented_mercenary (50%)

griegsend1304244, range=142 (161,1957,-55)

a_shrouded_willsapper (100%)

griegsend1304167, range=155 (207,2244,-55)

griegsend1304166, range=106 (207,2189,-55)

griegsend1304069, range=142 (162,1957,-55)

a_shrouded_willsapper (50%)
a_shrouded_willsapper (50%)

griegsend1304068, range=48 (196,2117,-55)

griegsend1304067, range=71 (117,2162,-55)

servant_of_the_magistrate (50%)
servant_of_the_magistrate (50%)

griegsend1304066, range=86 (66,2114,-55)

griegsend1304065, range=125 (41,2160,-55)

griegsend1304062, range=190 (-21,2182,-55)

griegsend1304061, range=134 (51,2189,-54)

griegsend1304060, range=150 (94,2238,-55)

griegsend_282477, range=159 (151,2258,-56)

Your_mind (100%)

griegsend_An_Atra_Somnium9_takp_import_v0, range=138 (153,2237,-55)

griegsend_225221_takp_import_v0, range=31 (162,2128,-55)

A_Dark_Vision (100%)

griegsend_A_Dark_Vision11_takp_import_v0, range=166 (115,2262,-55)

A_Dark_vision (100%)

griegsend will vision_takp_import_v0, range=119 (153,2218,-55)

A_Dark_Vision (50%)
Will (50%)

griegsend dark vision roambox1_takp_import_v0, range=116 (124,1986,-55)

griegsend dark vision roam box2_takp_import_v0, range=190 (243,1932,-64)

A_Dark_Vision (100%)

griegsend_Will201_takp_import_v0, range=119 (153,2218,-55)

Will (100%)

griegsend intermittent you_takp_import_v0, range=163 (153,2262,-55)

You (50%)
You (50%)

griegsend_An_Occisor_Acerbus259_takp_import_v0, range=48 (155,2051,-54)