Helpful Tutorials

[Rapture]

Proper Lighting for Indoor areas?

http://wiki.frictionalgames.com/hpl2/tut...tutorial_2

Yes I know yours exists and its taught me a couple of things to.

But I want to show people common mistakes that I see in alot of CS.

I have it all ready, but the map that I've overhauled belongs to a CS that hasn't been released yet. So the Author does not want me to release it till hes done.

I could go with using another person's work, but I've spent already the effort on his map. And I really like the work he put into it before I changed it.
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I'm a little stumped at what other tutorials I could do. Any suggestions? I'll even take a scripting one, as long as it's not on the high-level end of Apjm.