Stacked module effectiveness:
1st module = 100.000%
2nd module = 86.9119842%
3rd module = 57.1037996%
4th module = 28.2469117%
5th module = 10.5988834%
6th module = 2.9989473%

Site Difficulty

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

(Faction) Hidden (Anomaly) - Easiest
(Faction) Forsaken (Anomaly) - Middle
(Faction) Forlorn (Anomaly) - Hardest