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Join Date: Jun 2012
Posts: 941
# 4
09-12-2012, 03:16 PM
Once you've gotten a tier, Sci, Eng or Tac, to 10k you need to do the upgrade to whichever of the three you want. For example, complete the shipyard upgrade for Tac and you will receive the 1k Starbase XP needed to unlock the project to upgrade your SB to T1.