MD3 models are released still these days for HRP using this exporter; If you friend like to do things from scratch, he doesn’t need en importer: eh can save his work in .blend and export in .md3 
As pointed nonoMapper, you can use a version with a functional import script and a more recent with the export function.
Blender 2.63 & Python 2.6 installed, I have the export script from Duke4 for quite some time, I’ve been able to make and export untextured chairs and table some time ago :D…
Edit: Also got a MilkShape importer in it. May interest thunderpwn, I think it is natively built in but not enabled
