Update Hotfix 2:
We’ve updated Multiplayer session browsing to be searchable worldwide. Previously, players weren’t seeing games registered outside of the region set in their Steam client. You’ll now see all sessions globally regardless of your region. 
The game will now notify you if the Steam Overlay is disabled when you’re trying to use functions that depend on the Overlay (i.e. viewing user profiles and inviting friends).
The GameConfig.dat is now more robust against bad data, which should help eliminate a crash on launch for a small number of players.
We’ve also added a -safemode flag to startup, which will ignore reading the GameConfig.dat if you’ve selected settings your PC doesn’t support. This will allow players to launch the game and revert settings if needed.

Update Hotfix:
The hotfix moves Universal CRT to App-Local deployment, so users should no longer have to manually install VC redists. It also removes a dependency on Windows Media Foundation, which was affecting players with Windows N editions. 

We’re aware of a few other issues and are working diligently to resolve them – further updates are on the way.