I like Halo. Is there really anything else to say?
So, I was just sitting around one day when i decided, "Hey, I should get some halo 3 campaign achievements so i can spend more time playing Reach!" However, my game was lost (so tragic...), so I borrowed one from a friend. The campaign portion only loaded a map, Halo, once, with some friends in co-op campaign, but when i tried to do it locally afterwards, it failed to load.
Something that may or may not have to do with this issue is that during the time period after i played that first time and then the next, I played with my Multiplayer Disk from ODST and deleted a couple of screenshots, one of which had a big red X over it. When I tried to view it, it said that my halo 3 was a different version than that of the file. Unfortunately, I only viewed this on the Multiplayer disk, not the Halo 3 campaign disk. Since i needed some custom slots, I deleted it. The exact file name is Potato Chi 001 i think, or something to that matter (yes, i know there is no p in chips, that was how it was spelled).
SO, can anyone help me here???