Mostly harmless.

Faction -------- Hardener to use ----------- Damage type to use

Blood Raider --- EM/Thermal --------------- EM
Guristas ------- Kinetic/Thermal ------------ Kinetic
Sanshas ------- EM/Thermal --------------- EM
Serpentis ------ Thermal/Kinetic ------------ Kinetic
Angel. --------- All Resist (Explo/Kin) ------ Explosive
Mordus -------- Kinetic/Thermal ------------ Kinetic
Rogue Drones -- All Resist (Explo/Kin) ------ EM
Mercenary ----- All Resist (EM, Therm) ----- Thermal
Minmatar. ------ All Resist ---------------- Thermal, Explo
Gallente. ------- Kinetic/Thermal (sec. EM) -- Thermal
Amarr --------- EM/Thermal. -------------- Thermal
Caldari -------- Kinetic/Thermal ------------ Kinetic
The Seven ----- All Resist ---------------- Thermal
EoM ----------- Kinetic/Thermal ----------- Kinetic
Khanid --------- EM/Thermal -------------- Thermal

~~~ In Order of Difficulty ~~~

Hidden > Forsaken > Forlorn

1. (Faction) Burrow / Drone Collection
2. (Faction) Hideaway / Drone Cluster
3. (Faction) Refuge / Drone Assembly
4. (Faction) Den / Drone Gathering
5. (Faction) Yard / Drone Surveillance
6. (Faction) Rally Point / Drone Menagerie
7. (Faction) Port / Drone Herd
8. (Faction) Hub / Drone Squad
9. (Faction) Haven / Drone Patrol
10. (Faction) Sanctum / Drone Horde

DED Rating Maximum Ship Class Size Allowed
1/10 Frigate class
2/10 Destroyer class (including T3)
3/10 Cruiser class (except for T3 cruiser)
4/10 Battlecruiser class (except for T3 Cruiser)
5-10/10 Battleship class and T3 Cruiser