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The game will not allow me to play the comapign online for halo 4. It says that I am missing downloadable content. I have cotacted 1-800-4my-xbox about this matter and they consulted with me, and told me to come here and hopefully talk to a 343 member. I need help on figuring out this problem. Please help, thankyou
Hey, you should be able to do co op campaign if you invite friends then start the game, but to my knowledge you cant search for a campaign game as you did in reach, i might be wrong but let me know how it goes 
also i had quite a few problems with my NAT type so i had to reset my modem, but apart from that i cannot think of any other problems you might have unless your privacy settings are on strict or something like that, do you have family settings on your xbox?
I have people in my party trying to play the campaign. if we try to select the 4th mission to the last it wont allow me to play with them
Sounds like you either have a scratched disc or a corrupt file
Try downloading the disc to your hard drive
or you might have to delete your game data. You will lose your campaign progress with this though. You will not lose any multiplayer as that is online
well my disk does have a little scratch on it. But i have redownloaded it, deleted it and redownloaded it. so i guess get a new game since its still within 90 days so i can get a new disk
wrong section buddy.