Fg-optional-mp-zombie-04.bin -

You do not need to download this file if you only intend to play the single-player campaign.

I can give you more specific troubleshooting steps for that game. fg-optional-mp-zombie-04.bin

It must be placed in the same folder as the setup.exe and other bin files before starting the installation. If you can tell me: Which Call of Duty game this is (e.g., Black Ops 2, MW3)? Are you trying to play local zombies or online multiplayer ? You do not need to download this file