How do I get this game to work on modern PC?

Old game and still expensive even on sale. It's also full of bugs related to its age. Why bother?

Hello, I bought and downloaded CoD 2 yesterday as a throwback to my younger days, and I can't get it to work. When I launch the campaign, I get a texture bug with a gray screen at startup. After searching, I saw that others have had this problem, but I can't fix it. I've tried compatibility mode, administrator mode, and a patch in the game folder, but nothing works. I saw that it could be a DirectX issue (apparently version 7 is required), but I'm on version 12 and I can't change it... Does anyone have...

already tried running in windows xp compatibility mode and as admin. sometimes it says i need to download flash 8 but most of the time it just does nothing. any help would be appreciated

This mission on veteran is an absolute DISGRACE! I was enjoying my time with the game, even completed Silo without struggling much. WTF is this mission? Infinite enemy spawns? Infinite grenades? I've been on this same mission for the past 2 days. I am considering uninstalling...