Solution 2: Check Your Internet Connection\n\n A poor and unstable Internet connection may also lead to the Modern Warfare 2 not launching PC issue. Therefore, when the issue comes out, you should check your Internet connection as well. To improve your network, you can try restarting your router and modem.
Installing Call of Duty: Modern Warfare
1
Launch the Battle app.
2
Log in with your Battle account email.
3
Select Call of Duty: Modern Warfare.
4
Select the content you wish to install: Campaign, Multiplayer, Special Ops, Survival or Warzone Caldera. ...
5
Click Install.