Edit: Fixed it by completely uninstalling old drivers using Display Driver Uninstaller (Version 220.127.116.11) and then reinstalling the latest drivers (Crimson 18.104.22.168).
So I've been playing the new Doom and I've got this bizarre graphical glitch. I've tried changing drivers and updating to the most recent (including the Doom specific hot fix Crimson-22.214.171.124) and it's made absolutely no difference.
AMD R9 380
Windows 10 64bit
Alienware 0XDJ4C Motherboard
It's really starting to get on my nerves, so any light shed on this issue would be greatly appreciated.