Unzip the attached file.

Place the .iwd file in the "/main" subfolder of your Call of Duty 4 folder.

Place the .ff file in the "/zone/english" subfolder of you Call of Duty 4 folder.

Run COD4 single player, open the console with the "~" key.

You may need to enable the console in your options if it doesn't open.

Type this in to the console (without quotes): "map vf_escape" and hit enter.

Enjoy, and thanks for playing!