It would be nice to have some Admiral and Officer tags that have a more 'naval' feel to them... a Clone or Stormtrooper tag would be a nice addition...
Conqueror feels odd... it... really doesn't feel like it fits in with the other categories on the list of NFU tags.
Sharpshooter, Sniper, and/or Marksman could be added... to expand on the Assassin, Bladesman, and Soldier/Warrior tag options...
Mechanic could be added to the list of Engineer and Slicer...
Bodyguard, Escort, Tracker, Scout, Pathfinder, Naturalist, Hippie... Beastmaster, Hunter, Tamer, Trainer... Maybe... Tank, Tanker, or Crew....