halo 3 question????????????????????

[fernando_rvlcb]

ok so heres the deal i just got my xbox like 3 days ago from xbox support be cause of the e74 error.but thats not the question.
i wanted to play halo 3 so i did.but when i was about to pick a map on custom games the heroic map pack and cold storage wasnt there.i go to system settins on the dash board and i go to the memory and its there.any ideas why i cant play and how i can play the maps again???.do you think il have to download it again???

 

[biff]

sometimes after somethin happens like that they will go missing. just restart and if that doestnt work wait untill 2morrow. if its still not there u might have a problem.