Hello @sizezero, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/1385#issuecomment-751415392.
As a side note, the nVidia 390 series video driver is older than the minimum requirements for Proton, which is why you're having a bad time with the Vulkan render path.
proton 4.2-9x1 2020-12proton 5.0-10x1 2020-12PROTON_USE_WINE3Dx1 2020-12
Compatibility Report
System Information
I confirm:
steam-209000.log
Symptoms
When in the game the left trigger does not work at all. (it's supposed to select and aim a weapon). I've tried both a wireless xbox one controller and a wired xbox 360 controller and both exhibit the same symptom. The controllers (and left trigger) work fine in other games including Batman Arkham City. (via Proton 4.2-9)
This appears to be a regression as I was able to play the game via steam/proton in March 2020 (with the same controllers) with no problems. Unfortunately I don't know the version of Proton I used then.
Reproduction
I can get the game to run on Proton 4.2-9, 4.11.13, and 5.9-GE-8-ST. I need to set PROTON_USE_WINE3D or I get an error that "your graphics card does not support alpha blending". I have not been able to run the game at all with Proton 5.0-10 or 5.13-4. I'm launching the game from steam.
Enter the game in story mode, select a weapon/tool with the dpad and hold the left trigger. The tool is not selected to aim. The right trigger and all other buttons and controls work fine. Everything else in the game seems to work fine.
I haven't found any other issues that reference similar controller problems.