this game doesnt work

I dont know how to use a forum. Is this just an excuse to not have tech support? I paid a lot of money for this special edition halo 4 xbox and some mission wont load. Why should I have to fix it? What a load. When we try to play the reclaimer mission it say profile wont load and apparently my only option is to post rants on this stupid forum and hope someone will decided to answer.