Hello everyone!

So, yesterday I picked up the warpath DLC, with the intention of playing the Darthmod Uprising campaign as the United States. However, once I began to play I discovered that there was no way of building an admiralty and upgrading naval technology. I was disappointing, but learned that there was a way to change this by editing the startpos.esf and regions.esf. I was able to successfully edit startpos.esf, but whenever I attempt to edit regions.esf, I am given an error message upon opening the root file, and when I attempt to save after completing the needed modifications, I get an error that fails the save and locks me out of the file. Is there anyway I can change this, anything I can do? I've been scouring the forums and found others with the same issue, but didn't find a solution. Is there any alternate way of making naval technology and buildings available in the uprising campaign?