Also if you want to "see" your changes in the game, after you have made them, you need to delete the file named
Models.Cached which is in the Models folder.
FYI, in all AGE games, this file is created after first run of the game to quickly store all models data in a single quickly-read file, so as to speed up loading time...which means the data the game reads is in this file, and the mdl files are no longer read individually....so changes are not read if the cached file is there... when you remove it, it is recreated the next time you read the game, but with the mdl files data...which will then include your changes

Clear?
