And a quick google came up with this..
Eiger tower fallingYou guy's need to start researching stuff. Get out to other sites.
Half-life is so diverse that one site can't cover it all...
I still cannot find one single reason to decompile a map. The stuff you want to know is already explained here at TWHL or on other sites, and it is easier to search for the information than to decompile anyway...