Originally Posted by
YourMaster
I think in this case there's no harm done, but in general that isn't a good idea. On github there's only the files that are versioned, to get the basically only the source files that make the exe-file and some text-files. Maps/levels have a script file in that campaign folder you mention, but have 6 other files that go with it. When you only download a new script file, but don't get the rest of the files to match, you could get a non-functioning map.
I indeed recently made some more changes to keeperfx-unofficial, but I haven't made the time yet to test everything properly and make a new release.