
Launch Warzone, and configure settings to your liking.Change the 'ConfigCloudStorageEnabled' value from 0 to 1.Delete everything in the folder except for the 'adv_options' file.Find a file named 'Call of Duty Modern Warfare' and open it.Open your main Documents folder in Windows Explorer.Try this if voice chat isn't working on PC, but be warned this could result in losing your progress in the Modern Warfare campaign: Some players are having trouble voice chatting with friends playing on a different platform, which is a huge problem for a team-based game! Raven is working on this one, but in the meantime, there's an easy solution for PC players that seems to do the trick (as first spotted by YouTuber EvilNickel and shared by PCGamesN). Voice chat not working with crossplay (PC) Raven has already acknowledged the issue, so a fix should be incoming. As of right now the only solution is switching to a different weapon, and it might be worth it to avoid the STG until the issue is patched.

While I have also observed this glitch happening to the MP40 submachine gun, most of the time it seems tied to the STG44 assault rifle.
