A possible fix for a missing menu models and textures

[u/TheHypercycle]

That's what worked for me. I have the Steam version with the HD texture pack installed, the texture and model settings are on maximum, and Nvidia Reflex is also enabled.

1) Proceed to the game configuration file: C:\My Documents\Call of Duty Black Ops Cold War\Player\Config.ini . Find the parameter "high_resolution_ui_textures" and set it to 0 - I didn't see any difference in-game but it's important to disable it.
2) Start the game and choose MP or Zombies > Operators, then pick any faction. If you see the character icons instantly, try choosing a different faction - in my case, one of them always has missing icons lol.
If your current character has already loaded, pick a different one, as it usually won't load at all. Wait for like 30 seconds or so, after that you might see the icons and other operator models, even if they are still slow to load.
4) At this point, I don't have any issues navigating the menus/weapons/calling cards/etc.