pngu
Published
WINEDLLOVERRIDES="xaudio2_7=n" %command% -nosplash -skipIntro
Adding WINEDLLOVERRIDES="xaudio2_7=n" to the launch options and setting the in-game "Samples" option in the audio settings menu appears to help with crackling sound.
Occasional flickering of textures and shadows, but not worse than what also occurs on windows versions of BI games.
Not a linux-specific issue but the "negative acceleration" that was removed in ArmA 3 and later is present in this game, which is going to throw you off if you're the kind of person who primarily plays shooty-pew-pew games.
The game can get pretty stuttery at times. Especially annoying due to the forced motion blur, unless you set post-processing quality in the video options to "Very Low" or "Disabled".
In addition to what's been outlined in Rakon's report below, I managed to get the DLCs/Expansions working.
The mentioned "error at launch about being unable to find Arma2.exe" is Steam trying to install the ACR DLC. You can fix that by running regedit in the game's wineprefix, navigating to HKEY_LOCAL_MACHINE\Software\Wow6432Node\bohemia interactive studio\arma 2, and changing the values of the data and main keys from %STEAMPATH%\SteamApps\Common\ArmA 2 to Z:\path\to\your\steamapps\common\Arma 2 Operation Arrowhead.
Installing the BAF and PMC expansions is a little more tricky (even on Windows, see https://support.bohemia.net/arma-2-british-armed-forces/steam/128), because they show up as separate games in your steam library. When you click "Play" to install the expansions, they cannot find the CD key for your A2:OA install because it's part of a different wineprefix. To fix that, export (using regedit) HKEY_LOCAL_MACHINE\Software\Wow6432Node\bohemia interactive studio\arma 2 oa from the A2:OA wineprefix, and then import it into the prefixes of A2:BAF and A2:PMC, then click "Play" on each to install the files.
Finally, export HKEY_LOCAL_MACHINE\Software\Wow6432Node\bohemia interactive studio\arma 2 from the A2 wineprefix, HKEY_LOCAL_MACHINE\Software\Wow6432Node\bohemia interactive studio\arma 2 baf from A2:BAF and HKEY_LOCAL_MACHINE\Software\Wow6432Node\bohemia interactive studio\arma 2 pmc from A2:PMC, then import them all into A2:OA. You should now have a working "Combined Operations" installation with expansions and no error messages on launch. Go grab a beer, you earned it.
Works (incl. Multiplayer) without using 3rd party launchers or beta versions. Could not run it on Proton-GE, had to use Proton Experimental.
mangohud %command% -noLogs -noSplash -skipIntro -world=empty
Using wlroots-based Wayland compositor "sway" the launcher kept glichting into and out of fullscreen while being unresponsive to input. Was resolved by forcing its window into floating mode through sway's configuration file.
The launcher feels very laggy.
Connected to an official server and stayed there playing around with graphics settings for about 15 minutes without being kicked. Prior to connecting you'll get a dialog prompting you to accept BattlEye's licensing terms, so it seems it's working correctly.
If you're running a common distro with a "normal" desktop environment and Valve's Proton the game should just work™
The performance problems everyone is experiencing are present on Windows, too. It's a game issue, not an OS one.
mangohud %command%
Occasionally on map cycle FPS tank a lot, most people can fix that by running "HighResShot" from the in-game console.
Does not detect analogue inputs (sticks) on DualSense controller, uses them as digital ones.
EAC needs a workaround, but at least there is a workaround.
Aside from the Field Manual, another good resource for problems present & past is the Github issue for Squad on valvesoftware/proton: https://github.com/ValveSoftware/Proton/issues/938
