Things You'll Need
Instructions
Set up each Xbox on the TVs. Connect the Xboxes with the ethernet cable by inserting the cable into the back of each Xbox.
Put a copy of "Call of Duty: Black Ops" into the disk tray of each console and load the game.
Select the "Multiplayer" option on the main screen on either console.
Choose "Local" and then select "System Link." Press the "A" button on each controller to add all eight players to the game lobby.
Select the game type and map you wish to play. Select the "Start Match" option to begin the game.