i think steam is going to prevent the copying of models... i downloaded steam this past week and started to play dod (i also downloaded cstrike, which i won't play, and half-life.)
none of which had any model files (*.mdl's) in any location on my hard-drive. i just couldn't find them!!
so with that said. czero might take the same route. of course it could have just been a big ole pack file of some sort.