The files in drop box were the files I changed using your replace method.
The files with _Fed were files I made using your amend method.
I get pretty much the same errors with both methods.
Below are the errors I get when using the replace method
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(10,3): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(11,3): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(12,3): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(13,4): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(15,4): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(21,3): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(22,4): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(24,4): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\PlanetDefs.xml(31,4): error:
no character data is allowed by content model
C:\Users\Eric\Documents\My Games\GC3Crusade\Mods\ExampleMod\Game\StarDefs.xml(16,3): error:
no character data is allowed by content model
I added the _Fed files to the previous dropbox
https://www.dropbox.com/s/bl4uiz1ctenp2ni/StarSystemDefs_Fed.xml?dl=0
https://www.dropbox.com/s/w3a5edcl2ivd464/StarDefs_Fed.xml?dl=0
https://www.dropbox.com/s/6a0ddlj16tjm1w5/PlanetDefs_Fed.xml?dl=0
https://www.dropbox.com/s/qc3303mejj0jsp2/FactionDefs_Fed.xml?dl=0
Thanks for looking at this