Changed the skybox texture to the painted version. Now the skybox can be repainted using the Sky Editor entity.

Fix bug with 3d Skybox.
In the Hammer itself, the map had to be lowered a bit, so I broke your saves. I apologize!

Night version of the map has been added.
The brightness of the sun on the daytime version of the map has been increased.
Minor corrections in info_nodes.

Ambient has been added, you can now hear birds singing on the map. The navigation system for ground NPCs has been improved. An easter egg has also been added.

Completely reworked Skybox. Skybox is now 3d and its texture has been replaced and taken from Counter-Strike: Source