From 10pm today, the Hidden Fronts Map Pack will join the Annex gametype and Multiplayer Map Pack 1 as another piece of free downloadable content for Gears of War.

Gears of War has sold more than 4 million copies worldwide, and recorded the most number of unique players among all Xbox 360 games in August 2007, as well as the highest cumulative number of hours played by Xbox Live members.

In the Hidden Fronts Map Pack, players can clash for control of four dynamic areas, Bullet Marsh, Garden, Process, and Subway:

Bullet Marsh
In this Kryll-infested swamp, an old generator still powers the area lights. A few stray bullets could easily knock out the generator, leaving combatants to fend for themselves against the Kryll.

Garden
This overgrown and crumbling conservatory still has a working fertilisation and pesticide system. This system can pose a serious hazard to anyone who ventures into the greenhouse without first venting the air.

Process
Fight for control of this subterranean imulsion processing plant, still active despite the cessation of the Pendulum wars.

Subway
Timgad's central subway station used to serve as a hub for commuters. Now the tunnels are crawling with Locust.

The action of Gears of War continues this November with the release of Gears of War for Windows Vista and Windows XP and adds a variety of all-new content, including three new multiplayer maps, a new multiplayer game type, game editor, five new campaign chapters and DirectX 10 support.