The year is 2055 and humanity has colonised other planets. The evil Zentraedi, a technologically advanced alien race, have invaded Earth and destroyed most of its cities.
You play as the leader of an elite team of fighters, tasked with leading a rebellion against the Zentraedi forces. With the help of your allies, you must fight your way through the enemy ranks to destroy their motherships and save humanity from extinction.
The gameplay is fast-paced and action-packed, with a variety of weapons and abilities at your disposal. You can move freely around the battlefield, using cover and stealth to take down enemies undetected. The game features a range of challenging levels, each with its own unique objectives and challenges.