This is one of my abandoned maps. Weird developer-esque maps like koth_skybox used to be a popular trend in Team Fortress 2 mapping, so this was my take on the whole affair. I began this project on the 12th of April and ended development at version a6 on the 21st. This post is a reupload, since the original was of the type WIP (instead of Map). Since this map has been abandoned, I am providing the VMF file for anybody that wishes to continue the map, however you will need to use VIDE to extract the custom content inside the BSP.
KOTH Tools uses modified versions of tool textures which enable the "triggers" and "clips" to be visible within Team Fortress 2. This was done by layering the non-functional edit of a tool texture as a func_brush on top of the regular texture, with the exception of nodraw, which is a simple solid of its own. The skybox is custom but is comprised entirely of the skybox tool texture repeated multiple times. The map uses custom developer textures by nyronic.
As far as server requirements go, there aren't really any. You're free to tell me of one if you happen to find it.