Yeah it does explain the missing textures. But on the account I have only CSS/HL2DM/DODS and the OB SDK Base. I got no such mount error, only the missing textures in the test map and the weird error in the testing map. hmm but I just realized I do have TF2 installed, but it isn't on that account. I ...

hm but when I load up GFCScape I look into Source 2007 shared models.gcf and Source 2007 shared materials.gcf and I know that comes from Orange Box SDK Base package. Loads up fine in the SDK as well. And this is on an account that doesnt have any orange box games (i dont even have hl2:ep2 installed ...

I'm pretty sure that as long as you have the recently released Orange Box SDK Base you can play mods that require a game that uses that engine, without actually owning it. All you have to do is change a line in the gameinfo.txt that is in the main mod directory. It worked with me when I played Proje...