TeknoMw3

it says Exeed Limit of 64 'attachment' assets.
Idk what this means, can u help me fix it?

You tried or installed IW5M on Teknomw3, what do you expect when you see it downloading all those new thing? For it not to break?
You need to have them in seperate folders.
To fix tekno I think you need to install the 1.4.282 patch again to fix it. If it doesn't work well download the whole game again.