Here’s a Hungarian COD4 MW server where you can cheat to your heart’s content.

I found the following players there who were using wallhacks, aimbots, or both.

Cat Mario /\/\/\ Syobon Action https://steamcommunity.com/profiles/76561199838797010/
KillingFranz https://steamcommunity.com/profiles/76561198034145380/

Server address: 37.221.209.131:29004