Jump in and take command in a fight that spans six exotic worlds with diverse environments - from steaming, swampy jungles crawling with deadly creatures to rocky wastelands strewn with boiling lava pits to ruined cities half-buried in nuclear snow. Players start by building a base from which they command a force of armored vehicles, infantry, and aircraft through a series of exploratory, offensive and defensive missions. Gamers will drive a variety of tanks and walkers, pilot the scout ships, and even jump out and fight an evil and challenging alien enemy on foot. Each side will choose from an arsenal of powerful weapons including guided missiles, mortars, mines and bazookas.