Call of Duty®: Black Ops Cold War (1985810)

Compatibility Report

• Name of the game with compatibility issues: Call of Duty®: Black Ops Cold War
• Steam AppID of the game: 1985810

System Information

• GPU: Steam Deck
• Driver/LLVM version: Mesa 22.2.0.157821.radeonsi_3.4.0_2-2
• Kernel version: 5.13.0-valve36-1-neptune
• Link to full system information report as Gist: https://gist.github.com/Parapass/b3b58bdd1b1be226e9d5dd840e9f0c2d
• Proton version: Proton 7.0-6

I confirm:

• that I haven't found an existing compatibility report for this game.
• that I have checked whether there are updates for my system available.

steam-1985810.log

Symptoms

The game launches in Steam and is listed as playing but does not start at all.

Using journalctl I saw that the game was trying to find d3d12core.dll in /home/deck/.steam/steam/steamapps/compatdata/1985810/pfx/drive_c/windows/system32/ and /home/deck/.steam/steam/steamapps/compatdata/1985810/pfx/drive_c/windows/syswow64/ but could not find it as the file did not exist. Would this be a Wine problem or a Proton problem? On my Windows 10 install I can find both d3d12.dll and d3d12core.dll

Reproduction

Always happens

Start by reviewing the attached steam-1985810.log and the linked system information report, then reproduce the launch failure with Proton 7.0-6 on the listed Steam Deck environment. Done means identifying the cause of the missing d3d12core.dll failure and confirming that the game launches successfully.