That is a guaranteed way to break your entire installation.

This is a tutorial on how to mod cod 5 with a jailbroken ps3 and a file manager. Phoenix v4 (all maps) : http://www.mediafire.com/ -d̷j̷ǫ̵f̷u̶l̶l̴- Cod Waw Zone English Patch.ffgolkes - Facebook

Beyond bug fixes, this patch would include community-suggested enhancements. These could range from new maps and game modes to tweaks in game balance and improvements in AI. The goal is to refresh the game experience for both new and veteran players.