(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 Patrol
(Faction) Sanctum / Drone Horde (hardest)

Blood Raider Hidden Hub (easiest)
Blood Raider Forsaken Hub
Blood Raider Forlorn Hub (hardest)

Ladar to find Gas Clouds
Radar to find Hacking Sites
Magnetometric to find Archeological sites
Gravimetric to find Hidden asteroid fields.