"only XL-2"

Moreover, you can make the templates generic, which will make players work even harder. So, on the first day, it won't be easy to guess the template and discard it if it's not "yours" (as in anarchy).
Here's a sample RMG file; unpack it and put it in the folder \Heroes of Might and Magic 3\_HD3_Data\Templates in the only XL folder with the corresponding rmg.txt.