I know there are the case1024 textures and whatnot, but there are named textures I've been seeing, and as the screenshot shows, ones from dawnville. I've also been browsing through some of the models and in some instances I'll load them and the textures will be similar, colored blocks with numbers in them.

Previewing my message, I see the image got automatically resized. To see it with the texture names, I have it here

Those numbered texture belong there.. they were used in the development stages of CoD2.

It seems a lot though have names that would be applicable to something other than the dev process, and furthermore, those textures appear on some models that I saw. But, I'll take your word for it