Best Tank for NPCs:
Angel, Minmatar: Explosive / Kinetic
Amarr, Blood, Sansha, Drones: EM / Thermal
Gurista, Mordus, Gallente, Caldari, Mercenary, Concord, EoM: Kinetic / Thermal
Serpentis: Thermal / Kinetic
Khanid: Thermal / EM

Best Damage to NPCs:
Guristas, Gallente, Mercenary, EoM, Concord, Caldari, Serpentis, Arch Angels: Kinetic / Thermal
Mordus: Kinetic / EM
Blood, Khanid, Sansha, Amarr, Drones: EM / Thermal
Angel, Minmatar: Explosive / Kinetic

1. (Faction) Burrow / Drone Collection (easiest)
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 (hardest)