According to Twitter owner charlieINTEL, the Steam version of “Call of Duty 19” does not require a Battle.net account. Players only need to associate the Steam account with their mobile phone and attach an Activision ID. A Battle.net account is not required.
In addition, users who link their Steam accounts to Activision ID will receive official pre-order bonuses for Warzone or COD18.
For those purchasing #ModernWarfare2 on Steam, you only need a mobile number associated with your Steam account + an Activision ID, not a Battle net account to play.
In addition, connect your Steam to your Activision ID to get the pre-order bonuses in Warzone or Vanguard. pic.twitter.com/FIN7rduGne
— CharlieIntel (@charlieINTEL) September 3, 2022