Shortly after landing on an alien surface, you learn that hundreds of your men have been reduced to just a few. Now you must fight your way through heavily fortified military installations, lower the city's defenses and shut down the enemy's war machine. Only then will the fate of humanity be known.
Much more than just a sequel, this second coming has a mind (and an engine) of its own. Fifty-five larger mission-based levels, including 64-player DeathMatch and Capture the Flag levels. Futuristic weapons like the revered Railgun and BFG put every foe in its place, as do hordes of other comebacks including the grenade launch, chaingun and the Hyper Blaster from hell. And with enemies like the decapitating Iron Maiden and humanoid Tank, you're going to need all the help (and health) you can get.