When I try to launch the mod I get the following error message:
Failed to load the launcher DLL:
The specified module could not be found.
I followed the instructions for installing - close Steam, extract the .rar file, copy the folder to the sourcemods folder.
I opened the chapter1.cfg file. The only text is: map STTR_Ch1A_Set64 // howitallbegun (text and spacing are exactly as they are here).
Because of the error message, it seems like it is looking for a .dll that isn't included in the mod download .rar.