Ninja has done some modifications on the maps based on our feedback. This is the zip with the latest version.
In order to avoid problems and give him consistent feedback please do as follows:
-Remove all the maps from your custom map folder (GC\data\maps\)
-Reinstall (copy to that folder) both the Joxer’s basic mappack and the latest version of Ninja’s maps.
EDIT: 2 more new maps released by Ninja_Prime