User blog:Commdor/Rumor: ME3 to Feature 4-Player Co-op Missions

So Mass Effect and Mass Effect 2 have limited squad sizes to three members and only had a single-player storyline, but Mass Effect 3 could have 4-player co-op? Seems like a dramatic change. But seeing as the source of all this remains anonymous, the odds of this being real are 50-50 at best.

"According to anonymous sources in and around the interwebs, BioWare is working on adding a four-player co-operative component to Mass Effect 3, offering 'competitive elements' and 'original missions made for online'. Apparently, said co-op missions will be separate to the campaign and will be designed with repeated play in mind.

There'll be a handful of these missions, if the sources are accurate, and they'll be designed with broadening Mass Effect 3's mainstream appeal firmly in mind. 'Mainstream penetration is a major goal for Mass Effect 3 and those high up feel online co-op is the answer they're looking for,' the source revealed. 'EA's keen to push the multiplayer side of the game to help spread word of mouth - so it's not just going to rehash stuff from the campaign. It's going all out.'

While this is rumour for now - and BioWare's Ray Muzyka refused to confirm or deny th existence of multiplayer to OXM - speculation surrounding Mass Effect multiplayer has been kicking around for some time now, so it might not be beyond the realms of possibility. That said, we'll believe it when we see it. Mass Effect 3 is out in March 2012."