I don't know much about this game, but I heard it's similar to the Battlefield games.
Via Major Nelson
Content: Frontlines: MP-Demo
Availability: All Xbox LIVE regions
Dash Text: [ESRB: T (Teen) BLOOD,LANGUAGE,VIOLENCE] The War of the Future Begins Today! Battle with up to 32 players and over 60 next-generation weapons and vehicles on Kaos dedicated servers, In the year 2024 - amidst overpopulation, environmental decay, and erosion of political structures - high tech warfare is waged over depleting global resources and the fate of civilization. With intense action and open-world environments, gamers utilize shared targeting systems and squad based teamwork to move the frontline forward in an all-new game mode. Visit www.frontlines.com to find out more about the multiplayer features in Frontlines: Fuel of War. This multiplayer demo is available for a limited time, download and play it now!
Size: 1.11 GB