Deep Silver has revealed new details on the first single-player DLC for their post-apocalyptic FPS RPG Metro: Last Light, titled 'Faction Pack'. The new DLC includes three original single player missions, each casting the player as a different specialist from the warring Factions. Returning to some classic locations from Metro 2033, these missions feature new weapons, the return of a truly terrifying mutant foe, and offer three distinct gameplay challenges.

• As a Special Detachment Sniper of the Red Line, players must infiltrate a heavily guarded Reich Outpost at night,under the cover of a deadly radioactive storm…

• … before defending the Frontline as a Reich ‘Heavy’, armed with some of the most devastating weaponry found in the Metro.

• Lastly, players take the role of a Polis Ranger in training, tasked with exploring the vast Library complex for artifacts and relics. Salvage can be exchanged for ammunition, filters and hazard suits allowing ever deeper exploration into the Library. Rangers are advised to light torches and leave a trail of lights so they can find their way back to the base before their precious oxygen runs out…

Players looking to try out the new DLC will find it available July 16 for PC and Xbox 360, with July 17 marking Xbox 360 availability.

Deep Silver has also revealed additional details on the content of the future DLC packs, one of which will add leaderboardsupport to the game. The 'Tower Pack' presents a unique experience for seasoned Metro gunslingers – a challenge based game mode, with online Leaderboard support, as players fight their way up the combat simulator known as The Tower

The 'Developer Pack' boasts a fully stocked Shooting Gallery, the AI Arena and Metro Museum… And a bonus solo mission – The Spiders’ Nest – offers some new tools for dealing with an infestation of the skittering Spider mutants

Lastly the 'Chronicles Pack' will feature original single player missions that cast the player as three of the game’s standout characters – Pavel, Khan and Anna – and explore their side-stories away from Artyom’s adventure.