Instructions
Start the Xbox 360 game that you want to host.
Choose the option in the main menu to play the game online. Depending upon the game, this option may be called "Xbox Live," "Multiplayer" or "Play Online."
Select the option that allows you to create an online match.
Pick the game options you want to use. For example, if you are playing a shooting game, pick the stage and types of weapons that will be permitted.
Click the button to confirm these settings. Other online players can now join the Xbox Live game that you are hosting.