TenshiRyu

Are you still working on this mod? Unfortunately it doesn't work with the latest version of the game anymore :( NVM... I was on the wrong page and didn't see the last replies on this threat :D

Weapon Engineering (Turret Editor) - by darkconsole I have this one working on the Beta branch without any problems!

That sounds like you create/joined an alliance. When you add turrets and upgrades via this script they're placed in your personal inventory. If you're part of an alliance, flying an alliance ship, you need to move these upgrades to the alliance inventory first for them to become available for slotting.