Memories of the Dead

I don't understand how to find the map. Maybe I'm just not smart enough, or I'm doing something wrong. Usually, you extract the archive and then play the map. Here, I extracted it, and there are a bunch of small folders and text files, but no map file. Consequently, there's no map either. Usually, if something requires a non-standard installation process, it's explained in a text file. But here, there's nothing.