All kinds of nodes and polished navmeshes for Garry's Mod maps, made for KM_CM's Addon.
Saved in folders in format "[MapName] [Version]". Note that if versions are different, it might not work.
You can check your map's name and version by running lua_run print( game.GetMap() .." " .. game.GetMapVersion() ) in the console as a superadmin.
Example output: gm_construct 1765
This is NOT your typical Garry's Mod addon! You have to manually put .nav files in /garrysmod/maps,
and .json files in /garrysmod/data/covers/ (create folders if don't exist). Don't forget to backup
the original nav files, or some consequences might happen... I have no idea to be honest.
If you really feel like installing the cover nodes onto a different version of the map,
just change the last digits to the output of game.GetMapVersion(). But note that they may break.