[2021] [Crash/Freeze]Unable to launch in Vulkan mode. Crashes before game starts.

Hey SevenMD, thanks for getting in touch and I am sorry to hear about the issue you ran into.

First and foremost, can I just double-check if you're possibly using Overwolf overlay or Mirilis Action! screen recorder at the time? If so, try temporarily disabling it and just see if problem persists afterwards.

In the meantime, if you haven't already, I'd suggest you to try launching RainbowSix_Vulkan.exe from installation folder and also, try steps outlined in the following article, starting of by verifying your game files first.

Keep us updated and should there be any questions, let us know!