the windows aren't physgunnable, it has a few ai nodes, and the cubemaps are fixed.
Was that all made by just placing cubes, carving, hollowing, and repeating?
Needs dem secret places
No.
Why don't you want to make secret areas? Are you lazy?
Is it possible to texture in hammer and layout the texture area before exporting to quarkand torque constructor? Constructor sucks and half the time the brushes and faces don't select when I click them.
I guess? You can import your textures as VMFs into the game you have activated in the SDK, then texture it in hammer.