After almost 12 years, I decided to remake one of my earliest maps for fun (and to re-familiarize myself with the tools, as I stopped for quite a decent amount of time)! My entry for the TWHL Cubicles project! It still sticks to the limitations of the original project, but makes better use of the space available.
Everything you should need is included, just extract to your valve folder, then load it up and play! There's one secret in the map, but I like to think it's not particularly hard to find. Enjoy!