Ok, so I set everything up for link and when I click test, everything passes. When I go to a game, I click guide and go to System link then join a lobby on the same TU. Once I click System Link > Join Game, nothing shows up. I have tried this on BO2 TU18, MW3 TU23, MW2 TU8. Please help, thanks! Note: I don't have any DLC, I dont know if that would matter or not?