An interesting release this one. CZghost has dug up one of his very first maps and released it. To be honest, that is exactly what this feels like too. Nothing much to write about at all.
Plain walls and dull architecture, poor lighting make up most of the map. There are the first signs of the something interesting, maybe some experimenting appearing in a few spots. For example; the doorways, but that is really it.
The gameplay is a little enjoyable but the structure and finish will more likely push you away.