Difference between Editor pak's and UnrealPak pak's?

If you turn off “Use Pak File” you can also use the “FinalCopy_UFSFiles.txt” file for packaging some key points about using this file:

Every line contains 2 file paths

Every second file path, on every line needs to have “…/…/…/” added to the beginning

You can accomplish this by finding every instance of ‘" "’ and replacing it with ‘" "…/…/…/’