Cod 4 mw Xbox 360 Orginal still players?

There are still players and lobbies and player numbers

By switching from Steam to Battle.net, Activision has shut down the systems used by the community to collect player amounts. In other words, you will only find precise information on this if you open the game on the corresponding platform.

Only Steam (read: PC) continues to provide data;

https://steamcharts.com/app/7940

Surprise: there aren't many anymore