HOW TO PLAY ONLINE WITH A SILVER OR BANNED ACCOUNT
You will need: Silver account and Gold account, this also works with banned accounts.
1. Sign in to your silver account
2. Go into multplayer
3. Make sure the Server status says 50.0.0.0 on the top right
4. Go into System Link and create a match
5. Start it and push the guide button sign out and sign into your Gold/banned account quickly
6. If you still load the system link you did it right
7. Your should get the server 50.25.46.3 on the top right
8. Back out and go into xbox live.