


Starts good (singleplay)
Hint text is flickering.
Played with Proton 9.0-4.

Some text flicker mainly in the menu.
Tested the game on the LCD Steamdeck which is limited to 60Hz. Due to the 60fps cap there a no slow down when a soldier gets injured. I had only one time sound distortions after wake up from suspend. Gamepad buttons are shown as 1 to 16. Used this Guide as reference.
PROTON_USE_WINED3D=1 only for not flickering hints text, if flickering hints is not annoying - run without customization and get little better picture.
No window mode
Played with Proton 6.3-8 and/without PROTON_USE_WINED3D=1 %command%

To fix audio issues set xaudio to native, builtin: WINEDLLOVERRIDES="xaudio2_7=n,b" %command%
HUD text is flickering and sometimes hardly readable. Some clipping errors.
PROTON_USE_D9VK=1 might be optional.
Use this guide to limit FPS: https://www.reddit.com/r/wine_gaming/comments/8dcr40/is_there_any_fps_limiter_that_works_with_wine/
Game works well under Proton 4.11, not under Proton 5.0.

Runs okay, but some audio issues

The game runs right out of the box. The sound is a tad crackly, and the frame rates are bad on my integrated graphics, but it works.