If you've just installed EERD for the first time without any additional files, use the file within the folder called "0.01 Iron Maiden Anims", if using the alternative PS2 Leak anims addon then use the latter. 

Place your chosen file provided into the audio/PC folder of your Manhunt 2 install, or simply copy the path of folders from the .zip into your MH2 root directory, overwriting the original EERD Executions.fsb file.

It's advised that you only copy over a single file, as copying both will just overwrite the file you installed first.

Please ensure that you already have EERD installed (or any relevant addons) onto your PC copy of MH2 before installing the addon