Modern Warfare 2 players need to register a phone number and pre-paid "may not work"
Remember when Overwatch 2 launched last week and people were struggling to register their pre-paid, or pay-as-you-go, numbers so they could play the game? Well, now Activision Blizzard are planning to insist people sign up for two-factor authentication to play the upcoming Call Of Duty: Modern Warfare 2, too. They’re also warning that players with pre-paid plans might not be able to get the process to work.