Arrakis: Broken Planet (ABP) is a mod made by a small group mainly from the UK. This mod is for the game Rusted Warfare, a RTS game made entirely for modding. ABP is a massive mod that is based off of and designed similarly to Dune II. It introduces many mechanics and adds many more units.
Its not on rock? Worms would eat that.
Uses a vanilla Rusted Warfare map. SO there isn't any Rock.