Thanks goes to one of our Admins Capt Waddles who has found a way to fix the broken maps after latest round of client patches.
so, after checking everywhere possible i've found and confirmed a fix for the black map issue
What you want to do is go to ..\Steam\SteamApps\common\ATLAS\ShooterGame\Saved, and create a new folder called NewMapImagesCache Do not delete the other MapImagesCache
In that folder copy the whole 851759668 folder (from MapImagesCache) and put it into NewMapImagesCache
Do note that you have to do this without having Atlas loaded
Tada Fixed
But yea, essentially what happend is that they ''fixed'' the black map issue for official, while breaking it for unofficial. luckily i remembered that in the game engine they use if you put ''New'' infront of the folder, it will refresh it's settings and search for a new path (in this case the map images)