If you want to play this now, you can use this link:
https://pa n.bai du.com/s/15oSiwfKK67ONP_j62fg_OA?pwd=1906 (delete the space in the link)
The enter code"1906" if the code is required. Download it and put all documents to :C/Files/KillHouseGames/data/levels, then you can find it at self-made missions.

ah, ok

@Sir Walross
Yes I knew it. some players already told me this glitch. The reason why this glitch happened is that this map has more than 1 level.
So only 1st floor has been uploaded. And I think I find the way to fix it but I would remake this mission in a different way once I have spare time.
That means I will post a new version if I finish it. And this one would be deleted at that time.

hey, there seems to be something extremly broken with your map, most of the walls missing, no textures.