THQ have released details of a new DLC pack for Metro 2033. The pack will be available on the Xbox 360 and the PC through steam and will include new weapons, achievements and difficulty modes.

The 'Ranger Pack' adds new weapons, new achievements and the deadly 'Ranger Mode' game rules. In standard Ranger Mode, ammo is dramatically reduced and all weapons cause more damage. Your foes are deadlier than ever - but so are you! 'Ranger Hardcore' adds an additional challenge as the HUD is totally removed, creating the most immersive Metro 2033 experience yet. Rise to the challenge with two new weapons - the Heavy Automatic Shotgun, and the Volt Driver, Miller's signature gun. New achievements and 250 Gamerscore points are up for grabs.

The Ranger Pack will be released on both Xbox LIVE Marketplace and Steam in the very near future, with pricing to be confirmed closer to release.