A first for the franchise, Mass Effect 3 integrates an intense cooperative multiplayer mode with the Reaper War as it unfolds throughout the single-player campaign.
As Commander Shepard fights across the galaxy, four-man squads—representing the best the Citadel races have to offer—are sent into vital enemy positions hit by the Normandy team, intending to maintain the pressure on Cerberus, the Reapers, and the geth.
Players are able to step into the shoes of these unsung heroes, fighting against steep odds while trying to complete objectives until they can be evacuated from the field...or until the last soldier falls lifeless to the ground.