Thursday morning is the time for Gears of War fans to put in their diaries as Microsoft will make four new maps available on the Xbox Live Marketplace.

The four new maps will give fans the chance to do battle in areas where there are more hazards than just the other combatants.

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 fertilization and pesticide system. This system can pose a serious hazard to anyone who ventures into the greenhouse without first venting the air.

Process: Teams must 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 central hub for commuters. Now the tunnels are crawling with Locust.

The multi-map pack will cost 800 Microsoft points ($10) until September 3, where upon it’ll be free after that.

>> Read - Epic clarify Gears of War map pricing - buy now, free later