Originally Posted by llDemonll
These are very vague but if you can model change you can follow them easy.
1. Open MyWoWStudio
2. Open common.mpq
3. Items -> ObjectComponents -> Head
4. Select all files in there containing your current race (before you model-switched) and extract them. Ex: If you are Gnome Male extract all files with GnM in the name.
5. Use BatchRenamer and switch all the file names to the ones you want. Ex: If you were Gnome Male switching to Human Male you would put 'GnM' as what you wanted to rename and 'HuM' as what you wanted BatchRenamer to change it to.
6. Repack the extract files from Step 4 into a new .mpq file and build that archive.
7. Put the archive in the appropriate directory, run ModelChange.exe and whala, you are done.