The CTP does include HR4 textures, did you not add them in your subset?
Edit: You didn't
Which is cool, because it's a small download and it lets players play it still. Users with ctp1 installed should be able to see HR4 textures.
edit 2:
Cool map, r speeds are bit high, a little too high for my taste, each to his own.
I noticed the brush toilets which are fine, but if it's okay with you, I'd like to try to model some for that map, is that cool? If so, let me know here, or in a PM, or in the Submit Model Ideas thread.
-y00tz