Hello, ever since roughly this time last year (maybe September 2017), I've had massive flickering issues with Halo Combat Evolved (PC).
Here is an example:
As these are just screenshots its hard to picture how this actually looks in real time, but I assure you, its enough to take anyone out of the game experience, these graphical errors happen extremely often and change the entire layout of what I am looking at, at any given time. It will cause many textures to turn see-through and flicker like this many times per frame, they stay still if I don't move the player view.
Since May 2017 I have had a Ryzen 1800x running from an Asus Crosshair VI Hero and a cross-fired pair of R9 270x's, they ran Halo fine until some point around September/October last year and then this started happening, I upgraded to a cross-fired pair of R9 380's and the exact same thing was occurring, I then upgraded to a singular R9 390x around May and nothing changed.
I've tried all the possible different graphics profile options in the Radeon Settings menu and all I end up with is this problem becoming even worse.
Everything points to a driver breaking this game but I feel like I should not have to downgrade so far back just to get this 17 year old game to run properly.
Please advise, I am happy to answer any questions.
Here are some more screenshots.