This download is a self extracting installer including all you need to host and play Exterminatus - Rival Species 2. Three Species: Imperium, Tyranids and Chaos. Eighteen distinct classes, each with their own weapons. Nine maps from the 41st millennium, each with their own missions and objectives. Alpha 8.65 features a custom player model for the CSM Havoc class, gameplay changes to power armor, dozens of new voice lines and new versions of the Temple and Garden maps.