This download is a self extracting installer including all you need to host and play Exterminatus - Rival Species 2. Two Species: Humans and Tyranids. Twelve distinct classes, each with their own weapons. Nine maps from the 41st millennium, each with their own missions and objectives. Beta 7.50 adds Flamers and Plasmaguns for specialists and Ammo Shrines for restocking marines as well as lots of balance improvements.