RTF is a global modification that replaces all towns in the game.

My skeletons and mummies aren't working. By the way, could you just send me screenshots of them?

This is because the skeletons aren't in the archive; I don't have them at all. I first reworked them into desert skeletons and then into the current skeletons from RTF.

The mummies replace the original mummies, so they're not in the city.