Two-Player Local Multiplayer\n\n Call of Duty Modern Warfare 2 (2024) does not support the traditional four-player local multiplayer, but players can still enjoy two-player split-screen co-op by setting up a private match in the multiplayer mode of the game.

You can play WWII offline . If you are not connected to the internet, you can play the campaign (it's really good, you should play that) and local multiplayer (basically it's split-screen and bots). It can be done.