User blog comment:Master Sima Yi/Assassinews 02-03-'12 — Leaked AC3 info!/@comment-92.5.133.62-20120306155209/@comment-3979092-20120306224045

Maybe coop in multiplayer only is what they talk about. not sure though. and they said this "Hopefully Ubisoft really are working on a co-op mode for Assassin’s Creed 3, and this isn’t just an admin mistake on Xbox.com’s end."