Released on: 2020-04-10.
The chair (located in the middle of the map between the two sides), is "magic", it gives "something".
So just try to sit on it and you will see!
As "short" inconvenient (and unrealistic thing), the doors in the chair room open/close too fast, and do not stay open longer (just around 1 second). I personnaly modified that on my servers but however, I think the mapper should make an update regarding this.
Also, I have provided the Navigation file (.nav) for CS v1.6 and CZ, and also two map spawns files for the "Map Spawns Editor" plugin, but those are spawns for CS, not for HLDM where you can let the original ones for it.
If you use the map under CS or CZ with the spawns files I have provided, do not forget to rename and remove the "_
Also, I "apologize" for the current screenshots which do not show all the items of the map, mainly because I took them under CZ since I run a lot of HLDM maps on my CZ servers and I did not set up an HLDM one, so I completely forgot to launch HL this morning in order to took them.
But to rassure you, HL's specific inventory items entities (weapons such as crossbow, satchels, etc.) are present on this map if you play it.