Halo 3 split-screen says: "Players failed to load content."?

[Lemmingwings]

I just got Halo 3, but whenever I try to play it states: "Players failed to load content. How come I cannot just play this game split screen with my bro?
I just tried the singleplayer and it is also not working. I tried installing the game on my harddrive but then got the message the game is damaged. There are NO VISIBLE SCRATCHES on the disk however.

 

[?????? | Der | ???????? |]

You need to download the maps. I know it sux

As long as one of you have the maps and are playing on the same xbox you dont need to buy them twice.

If you need help on how to load the maps with the second player email me.

 

[Matt O]

Means you dont have the maps to match the playlist

 

[Gear]

both profiles need the maps...i think