If I am not mistaken, it should either be in monsters.arch06 or highmip.arch06 (although that might be only highres textures) or global.arch06.
I am not quite sure as I’ve unpacked pretty much all of these, but these would make the most sense to contain the character models.
As for the orcs and ologs, you might have to further unpack the Nemesis.embb file, however it may not be necessary, in which case you can find the files in a folder called “orc”. The meshes are a bit fragmented though, especially the faces and I also couldn’t find any mesh file for the orc bodies other than the infested and tower orc body as these two use a unique mesh for the body.
Also, if you’re looking for the static meshes, I think they’re in .inst format and I have no idea if it’s currently possible to import that into 3D editing programs or not.
I’ve got one of the orc swords into Source engine, however the smoothing on it is slightly broken and the textures also needed some adjustment.