Offline Campaign Halo 3 Help?

[Alex]

I am up to Cortana in Halo 3 campaign and ive been using my xbox live account, i decided to finish the game without internet because i wanted to see if it works, i took out internet, signed in and went to play but it says i have to start the campaign at arrival and ive tried everything to make it normal, i dont want to start again.

 

[Phantom]

Have you tried to select the level and if you hit start solo campaign or new campaign on the main menu then u gotta do it but if it only shows online then just finish it offline and then do legendary online with some friends

 

[?_? TØXi? ?_?]

Try signing out and signing back in, or click continue campaign if it has that.