This is a a discussion topic for the map "cs_sinister" by Addicted to Morphine which can be found here
Map description:
Update: Postponed indefinitely, will definitely port over to CS:S as soon as I find time this summer.
My first real attempt at a CS map for HL1. CT's spawn outside in a verdant canyon, and have to make their way into a sinister looking government facility that has been infiltrated by Terrorists. I'm proud of the architecture and texture lighting, but there were many areas of the base yet to be completed.