I've now spent weeks trying to get this to work, but I cannot play Gears of War 3 multiplayer online. The game keeps asking me to download a free DLC pack -- I've downloaded it several times and am only given the option of re-downloading it. But the game still won't play.
I tried deleting the content and deleting the cache, but Gears 3 MP still won't play. It keeps telling me to download the content, which I have -- even Xbox dashboard says I've downloaded it and only gives me an option to re-download it.
I can't find any solution anywhere online.