Firstly, can i give my praise for classy and outstanding work, out of three mod files i have currently downloaded, yours have been two of them!
Secondly, i have picked up a possible bug when using the HQ upgrades, i tried adding a static AA upgrade, and packed, unpacked the HQ. Packing went fine, but the unpacking seemed to hang, waited quite some time longer than normal, after a reload, i tried again, and after another long wait, it said the AA was emplaced, but the next line immediately said it had been destroyed. The rest of the unpacking proceeded as normal after that.
Finally, just a request, i noticed that you don't include the Zetaborn as playable in your mod, I do appreciate that it may well detract from people's immersion in the game, but if you or anyone else can give me some guidance as to how to add them in for my own purposes, it would be greatly appreciated.
Pob