Respawn just announced that the 360 is getting and update right now! They recommend you restart your game, if you are currently playing... On their other twitter account, they say that the update could take about 4 hours to role out. So some 360 users will see this update before others. Be patient.
Yeah and now I can't play it. I am getting an error. Found a post at ea.help.com that says they are working on it.