Plutonium

Faucheur13 not really no, 90% of the maps will crash pretty much. BO1 custom maps aren't coded properly (they're old) and therefore cause tons of issues outside of Steam etc

This is a known bug
Don't pick them or remove them from the box with a script

Resxt je te remercie je vais tester ça et oui je parlais de bo1 j'avais oublié de préciser désolé.

Faucheur13 most likely you uncapped your FPS or your PC isn't really good. CPU usage doesn't say anything about safety. Even Nvidia had 100% CPU usage issues recently.

What is the current value of com_maxfps in the console? Type it and screenshot it