This application has been modified so that you can play online missions without signing in to your Epic Games account.

Signing in to your Epic Games account is no longer required. If you wish to unlink your Steam account from your Epic Games account, please visit Epic Games website in a web browser.

For details on how to unlink accounts, please visit the website below.
https://www.epicgames.com/help/en-US/c-Category_EpicAccount/c-EpicAccountServices/epic-a000084959?sessionInvalidated=true