Never interrupt your enemy when he is making a mistake.
- Napoleon Bonaparte

It is far more important to be able to hit the target than it is to haggle over who makes a weapon or who pulls a trigger.
- Dwight D. Eisenhower

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

Swarm Preserver Drone
Spearhead Drone
Domination Drone
Supreme Drone Parasite
Drone Ruler
Drone Creator
Patriarch Drone
Matriarch Drone
Drone Queen

from low to high