In Mass Effect 3, an ancient alien race known only as “Reapers”, has launched an all-out invasion of the galaxy, leaving nothing but a trail of destruction in their wake. Earth has been taken, the galaxy is on the verge of total annihilation, and you are the only one who can stop them. The price of failure is extinction. You, as Commander Shepard, must lead the counter assault to take it back. Only you can determine how events will play out, which planets you will save from annihilation and which alliances you will form or abandon as you rally the forces of the galaxy to eliminate the Reaper threat once and for all.

Strengthen your forces and battle for new territories with the next downloadable content pack for Mass Effect 3 multiplayer! Available to download at no additional charge (EXPIRES MAY 29, 2014), the Mass Effect 3: Rebellion Pack adds two brand-new maps, a new team objective and a new equipment slot to the game’s critically-acclaimed cooperative experience. The Mass Effect 3: Rebellion Pack will also introduce new unlockable characters, including the Vorcha, ex-Cerberus operatives and Male Quarians. Also available are all new weapons and items that can be obtained through reinforcement packs in the game’s multiplayer store.

The Mass Effect 3: Rebellion Pack will be available starting May 29 on Xbox Live, the Origin client software and on PlayStation Network in North America on May 29 and in Europe on May 30.

The Mass Effect 3: Rebellion Pack includes the following content:

• Two New Action-Packed Maps – Land on Firebase Jade, located in a Salarian STG base on Sur’Kesh and fight to control Firebase Goddess on the Asari homeworld of Thessia.
• Six Powerful New Unlockable Characters – Level and promote six new unlockable characters, including the ex-Cerberus Adept and Vanguard, the Vorcha Soldier and Sentinel or the Male Quarian Engineer and Infiltrator.  
• New In-Mission Objective – Randomly occurring during waves 3, 6 and 10, this new objective will demand that teams retrieve a high priority package and securely escort it to a designated extraction zone on each map.
• New Gear Slot – A new slot will be available on the equipment screen, offering players a persistent gameplay bonus that will not expire after the end of a match. These new items will vary from weapon upgrades to character enhancements and will be available through reinforcement packs. 
• Lethal New Weapons – Eliminate the enemy with deadly new weapons, including the Cerberus Harrier, Krysae Sniper Rifle, and Reegar Carbine.

As part of the Mass Effect 3 Galaxy at War system, success in the cooperative  multiplayer experience in Mass Effect 3 links back to the player’s single-player campaign, helping Commander Shepard rally the forces of the galaxy to eliminate the Reaper threat once and for all. Multiplayer puts players in the role of a team of elite Special Forces soldiers sent to protect resources and assets that can help the greater war effort.

Mass Effect 3 on the Xbox 360 includes support of Kinect, allowing players to immerse themselves into the Mass Effect universe even further through new voice recognition technology.