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 8.76 features a new models for chaos Raptor's Meltagun and Havoc's Heavy Bolter and new voice acting for the imperial and chaos marines.