The MoHAAS.net tool version 1.3 is going to be released this week. The new version contains - besides a lot of stability improvements - a map downloader that automatically downloads custom maps which are defined in our admin panel.
Server administrators can now already inform themselves through the MoHAAS.net admin panel how to add custom maps. We have also improved our Wiki with lots of help on http://wiki.mohaas.net.
A community member has also made a YouTube video to demonstrate how he can play a Breakthrough map (Palermo) with Spearhead, thanks to the map downloader: https://www.youtube.com/watch?v=oi3G45Tjecs