How do you link the portal on black ops zombie mode?

Answer 1

You must have one ethernet cord connected to both xbox 360s and have 2 same games,the game updated to the both consoles from xbox live then go to system link and create game and on other console pick join game if it does not work try updating the game again from xbox live

Answer 2

start the single player mode then pass through the cut scenes and press select or start. after that go to multiplayer then select system link. it will then take you through the beginning of the game credits and eventually set u up while asking you to just press a through the loading screens.

Answer 3

you turn on the power, link the teleporter, then link it to the mainfraim in the starting room