I don't think that Timothy thinks of something like MED.

@ Timothy, there is a MDL / WMP SDK (1 MB - A7 - Apr 2008) - read/write WMP, MDL, HMP files. on the download page. This should help you to save your own mdl files.

http://www.puppenheim.org/
http://www.wuerfels-welt.de
Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt