The rumours are strong. That is like a strong smell, only on the level of ideas. Does that makes sense? No. But still our chums Eurogamer report: "Mass Effect 3 is strongly rumoured to feature a four-player co-op mode. Eurogamer understands this four-player, online-enabled co-op mode is "standalone" and features "competitive elements"."
This co-op portion of the game is "said" not comprise a portion of "the" single-player campaign, and will be its own thing. But who is doing the rumouring? And why are they rumouring so hard? Is it because they are compensating for something? Eh? Stay tuned for more overheard fragments of data as they happen, Internet fans!