(screenshots from earlier "outdated" version)
This is PMC Rattler terrain addon from OFP, now ported to work in ArmA 2 CO. This is desert terrain of 25km x 25km size, there is roads, airbase, airstrip, several oilfields, army bases, harbors and war torn ruined cities.
Required Addons: AGS Industrial, AGS Port, PMC Terrain Clutter, PMC Terrain Objects and PMC Skybox Remove.
Read online manual: PMC Addons/Mods Manuals: PMC Rattler.
Download from PMC Tactical ArmA 2 Downloads.