At first I was skeptical, but a mapping tutorial in map form wouldn't be a terrible idea. The only problem is you wouldn't be able to work as you followed it, which unless you have an amazing short term memory, might be a bit difficult.
Also the point of most example maps is to be able to open them in hammer and see how they are set up, rather than just playing them. Otherwise, you wouldn't need them because you could just play a game and see all the "examples" you wanted.