Drone levels affect several stats:
  1. The time it takes a drone to complete a supply mission. The higher the drone's level, the faster it works.
  2. Chance to bring back valuable items. For instance, high-level Squire will have a higher chance of finding fragments of top-tier weapons.
  3. Amount of rewards brought back from the supply mission. For example, a high-level Squire will bring back more weapon fragments from a supply mission.