[2022] Randomly game disconnects me and crashes by itself

It looks like your installation is incomplete/corrupted. Please use the ‘Verify Integrity of Game Files’ option, which is accessible via the Steam client using the instructions below:

1. Right-click Vermintide 2 in your Steam library sidebar
2. Select ‘Properties’
3. Select the ‘Local Files’ tab
4. Select the ‘Verify Integrity of Game Files’ button
5. When complete, close and reopen Steam