Learn more about Halo 3. (Flash demo) SynopsisThe Covenant rules the Earth ~ the Flood has been unleashed ~ and the fate of life everywhere hangs in the balance. Master Chief, a genetically engineered super soldier, is the last chance for humanity's survival. Stowed away on a Forerunner ship, he rushes back to Earth to defeat the Covenant once and for all. Hopelessly outnumbered, his outlook is bleak. But when you are bred for battle, you fight past the breaking point and bow to no one. It's all been building to this ~ a desperate, final war that leads to a soul-shattering climax of epic proportions. Help this incredible hero stop the Covenant, destroy the Flood and save the lives of every person on the planet.The third chapter in the critically acclaimed franchise features insane battles with an arsenal of alien and human weaponry. Discover all-new armaments and characters as you fight to the finish. You can even play online with Xbox Live and battle in pulse-pounding multiplayer action. Next-generation graphics and technological advances, such as enhanced artificial intelligence and a beefed-up real-time lighting engine, make Halo 3 shine with stunning realism.