Oh, it's on!
After burning through Far Cry 3: Blood Dragon, there's only so much left to do in the game before you never touch the thing again despite how ridiculously fun it is to hunt down critters with a neon bow. That was especially true of the garrisons which, once captured, basically just sat there.
Ubisoft has since patched in an option on all platforms to reset the garrisons, meaning you can go back in with all of you upgraded weapons. This is a very good thing indeed. According to the company, the patch was made based on the success of the outpost reset patch for Far Cry 3. Next time, maybe just include these options from the beginning? We'd appreciate that.