Rank
Rank refers to the experience system used by NPC crew, troops, and officers aboard spacecraft.
All of these NPCs gain rank as a result of accumulating experience points. An experience point is granted every time a mission order is marked as complete, limited to once per 5 minutes.
As rank increases, their skills rise, as they are getting better in what they do. More experienced crew are a valuable asset that can be very useful.
A crew member's rank is prepended to their name, such as LTJG Iwleni.
Rank, Job (Officer/Crew/Troop), and information on the remaining XP to ranking up are all listed in the NPC's resume:
Each type of NPC on a spacecraft has their own rank names, listed below:
Trivia
In the past, players figured out that one could set the mission mode to cyclic and spam the "Complete Order" button to rapidly increase crew rank. Auto-clickers could be used to level every crewmember to maximum within a few minutes. Haxus eventually heard about this, and limited the experience system to one point per 5 minutes.