"Yes, co-op MP missions for #ME3: they're real, and they're spectacular. Rest assured it's nothing of what you've feared. More soon..."
My guess is Mass Effect 3 will offer special cooperative mode missions that are separate from the main campaign. We still don't know how many gamers can play together or what type of missions they will be. My fingers are crossed for co-op planet mining.
How do you feel about Mass Effect 3's co-op mode?