This map is one of the longest I ever played, very polished and professionally made. I encountered almost zero bugs except for error props, the ones you can see in Hammer. Not sure what's that, maybe some missing weapons or items. It gives me mostly vibes of "Buried Deep" which is another great map, underground sections are a total fire. However I played this map on Expert with 16 players in lobby so maybe I was lucky. Gonna give it a try with regular 4 players.

Check out also my full playthrough with 16 players in action: https://youtu.be/zwqMgYOyE_8