You cannot create your own map for the MapFactor app. Mapfactor create the maps themselves, using a propriety format (*.mca). Thus you will have to wait until they release new maps, which as is about once per month.

You cannot create your own map for the MapFactor app. Mapfactor create the maps themselves, using a propriety format (*.mca). Thus you will have to wait until they release new maps, which as about once per month.