xbox wont let me play games.

first enforcement team is only for people who have been banned or suspsended, you are a silver player you need gold to play online on any 360 game not just Halo 4

...He said he can't play single player campaign. This has nothing to do with being banned.

Delete _all_ Halo 4 content. All save files, cache, everything. Make sure there is no trace of it on your console. Clear your cache, reboot your console. Then put in Disc 1, install the game as it asks (and not through the dashboard install), then try to
play the game again. Make sure you're signed into Xbox Live, and that your console has the proper licenses (Transfer your licenses just in case)

Keep in mind that this is only happening on my halo 4 copy, every other game I own I can play without this problem occurring even my halo reach works just fine

So that is kind of what is happening to me, basicly it wont let me play my xbox games, it does say it is my home xbox but it still wont let me play any of the games. Does anyone know how to fix this?

Can you give us some more specifics on what you can't play? Online? At all?