Terrains created using SRTM heightmaps, satellite images from maps.google or ArcGIS world imagery, roads from openstreetmap.org (OSM) shapefiles.
OSM shapefiles used for; vegetation objects according to landuse and natural. Location names from place names. Building placement with random placement (meaning not the normal manually created cities).
This project started January 2017 after figuring out how to get real world data from online, into terrain builder and arma3. Read the background story in PMC Tactical forums.