"Could not find zone 'code_pre_gfx_mp.ff'" or "File different from server" .
Let’s say you downloaded a custom zombie map called zm_highrise.ff . Do not just drop it in the main folder. The correct path is: .../zone/english/zm_highrise.ff Cod Mw2 Zone English Folder Download LINK
Once you have downloaded the compressed archive (usually a .rar or .zip file), follow these steps to apply the English files to your game directory: "Could not find zone 'code_pre_gfx_mp