When starting the game (steam version), the following error pops up:
Could not find compatible Graphics Device that supports DirectX 12.
Please ensure you have a DirectX 12 compatible graphics adapter and have installed the latest drivers provided by the manufacturer.
I have the latest drivers and the latest version DirectX. What should I do?
Which OS and graphics card? 
Having the same problem here cant find how to fix it
I was having this same issue on my GTX 1060, I implemented a fix that was used on the previous flight.
Navigate to the install location of Halo Infinite,
Follow this file path “MGS Test App 6\data\hardware”
Rename the “GPU_Manufacturer” .cfg file that is relevant to your hardware to some other random name, in my case it was “GPU_Nvidia”
Then boot the game.
> 2535447093148787;4:
> I was having this same issue on my GTX 1060, I implemented a fix that was used on the previous flight.
> Navigate to the install location of Halo Infinite,
> Follow this file path “MGS Test App 6\data\hardware”
> Rename the “GPU_Manufacturer” .cfg file that is relevant to your hardware to some other random name, in my case it was “GPU_Nvidia”
> Then boot the game.
Love u!!! 
> 2535447093148787;4:
> I was having this same issue on my GTX 1060, I implemented a fix that was used on the previous flight.
> Navigate to the install location of Halo Infinite,
> Follow this file path “MGS Test App 6\data\hardware”
> Rename the “GPU_Manufacturer” .cfg file that is relevant to your hardware to some other random name, in my case it was “GPU_Nvidia”
> Then boot the game.
worked like a charm
didnt work for me 
and I’m using a GTX 1050
yup didnt work for me either
> 2535423085646144;7:
> didnt work for me and I’m using a GTX 1050
i have the same problem my friend and i have the directx 12
> 2535447093148787;4:
> I was having this same issue on my GTX 1060, I implemented a fix that was used on the previous flight.
> Navigate to the install location of Halo Infinite,
> Follow this file path “MGS Test App 6\data\hardware”
> Rename the “GPU_Manufacturer” .cfg file that is relevant to your hardware to some other random name, in my case it was “GPU_Nvidia”
> Then boot the game.
Thank you! This helped me so much
help please! the game wont work!
I get the same error but if I select continue on the error rather than exit, the game launches and works fine. Hopefully not a bug that will carry over to the actual released game
Cause this just fixed it for me…
I realized all I needed to do was update the driver.
Don’t forget the simple stuff incase the other options didn’t work.
> 2535447093148787;4:
> I was having this same issue on my GTX 1060, I implemented a fix that was used on the previous flight.
> Navigate to the install location of Halo Infinite,
> Follow this file path “MGS Test App 6\data\hardware”
> Rename the “GPU_Manufacturer” .cfg file that is relevant to your hardware to some other random name, in my case it was “GPU_Nvidia”
> Then boot the game.
Big ups master chef this worked for me!
Same problem, I have the latest version of directx 12, and updated drivers on a Geforce 860M card. The renamed removed an error message but another one persists " Could not find Device due to the following missing feature: Hardware Tiled Resources Tier 2… Please ensure you have a DirectX 12 compatible graphics adapter and have installed the latest drivers provided by the manufacturer."