The other week Mass Effect 3′s next multiplayer DLC was leaked, and it looks like all the information from that leak was correct. The next batch of DLC will be called Rebellion and will include the following:
Two New Action-Packed Maps – Land on Firebase Jade, located in a Salarian STG base on Sur’Kesh and fight to control Firebase Goddes son the Asari homeworld of Thessia.
Six New Unlockable Characters – New characters include the ex-Cerberus Adept andVanguard, the Vorcha Soldier and Sentinel, and 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.
New Weapons – New weapons, include the Cerberus Harrier, Krysae Sniper Rifle, and Reegar Carbine.
The DLC will release on May 29th in North America and May 30th in Europe for free on Xbox 360, PS3 and PC.
Source: Press Release