playlist problem: help plz!

Hi guys,
My problem is that ever since I downloaded the anniversary map pack I am only able to play the anniversary playlists(with the reach disk). Also for some reason it won’t load any of the campaign missions… has anyone else had this problem? Or have any ideas on how to fix it? Any suggestions are appreciated!

Does your game say the phrase : Checking downloadable content data? Also, do you have it installed? And finally does it load the multiplayer maps in custom games?

EDIT: Possible solutions. If you have it installed delete it.Delete all of the map packs, go to storage, highlight your HDD, press Y and then choose clear system cache…it will clean your cache but please note that you will have to redownload all the updates of games. When you do that, revert back to tha game and check if it works normally. If it does the redownload any map packs you have purchased. If it doesn’t then it’s your disk’s problem.

As the above poster said, just redownload the maps. Then clear your cache.

If you don’t know how to do that, use the following link below and it will show how to clear your cache.

Link

If your disk is the problem, you may need to buy a new one.