Just for your info - Decompiling a bsp file is not a easy task and 9 times out of ten, you will have a mess to deal with. If you are trying to get ideas of a map layout or how a function works with a certain map, Please do yourself a favor and read the tutorials and look at the examples given, you will get alot farther and get more knowledge by trial and error, than copying someones idea, with no idea how they made something work or created the map in general.
I have had some one steal and decompile a very basic map that I made, needless to say, I was not happy. Give credit were credit is due. If you are allowed by the author to use the map - then let eveyone know that you are not the true author and you only modified the map.
With that said..... I will shut up now.