For those of you seeking freely available model assets, here is a link to the 0.A.D asset repository.
The game assets are under (CC-by-sa), models are in the dae format, which (some) can be imported and textured in blender easily. Some need adjustment (removing material information) of the dae file.
http://svn.wildfiregames.com/public/ps/trunk/binaries/data/mods/public/art/
And here is the link to the game for those interrested on what could be done with it: