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. Eleven maps from the 41st millennium, each with their own missions and objectives. Alpha 8.79 features a new weapon model and animations of the Chaos Havoc's Missile Launcher. This version also incorporates changes to the way in which Dreadnaught and Terminator armour absorbs damage.