"There wasn't any epidemic in the Bunker 66, the virus wasn’t turning people into zombies, there wasn’t any supernatural forces. Mold."
It is a very good for alpha version. However, it has a lot of issues, such as illogical puzzles, orphographic mistakes in pop-up red inscriptions, missing texture of w-model of MP-40, headcrab zombies instead of approriate to the setting zombies, old icons and names of weapons, a strangely long loading of 3rd map, inappropriate sounds of weapons and some other.
But, despite it, that mod had a superb atmosphere of exploration, great setting and interesting story. Also, the story left a lot of questions that hadn't an answer.
No matter, that mod is great and worth to play.