Dmg from NPC's
Gurista - KIN.80 THM.20
Angel - EXP.75 KIN.25
Blood - EM.50 THM.50
Gall - KIN.60 THM.40
EoM - KIN.70 THM.30
Mercs - THM.50 KIN.30 EXP.10 EM.10
Sansha - EM.55 THM.45
Serpent - THM.55 KIN.45

Dmg to NPC's
Gurista - Kinetic
Serpent - Kinetic
Blood - EM
EoM - Kinetic
Angel - Explosive
Mercs - Thermal
Sansha - EM

Anomalies:

* (Faction) Burrow / Drone Collection (lowest)
* (Faction) Hideaway / Drone Cluster
* (Faction) Refuge / Drone Gathering
* (Faction) Den / Drone Gathering
* (Faction) Yard / Drone Surveillance
* (Faction) Rally Point / Drone Menagerie
* (Faction) Port / Drone Herd
* (Faction) Hub / Drone Squad
* (Faction) Haven / Drone Portal
* (Faction) Sanctum / Drone Horde (hardest)

Variations, from easiest to hardest:
Forsaken < Forlorn < HIdden