SWBF2 Xbox Core.lvl Tool
http://www.swbfgamers.com/index.php?action=downloads;sa=view;down=1579 (http://www.swbfgamers.com/index.php?action=downloads;sa=view;down=1579)
Stock core xbox builder by Dark_Phantom
This folder can rebuild the stock Xbox core.lvl by just going into _BUILD and hitting "xbox_mungecore.bat" - this will use the /common flag (which contains the core.lvl munge) and rebuild the core.lvl, which can then be located in _LVL_XBOX.
editlocalize.bat will edit the main localization keys for the game.
editlocalize-xbox-override.bat will edit the xbox specific localization keys
I have put Teancum's localize folder in Common\Localize\TEANCUM-LOCALIZE --> it has a lot of extra weight but it may be better for your use case, considering the files in here are pre-patch/DLC. Just replace the files in the main folder and the Xbox folder with his.
xbox_modelmunge is not needed for this (only error generated)
I've stripped it down to only what is needed or if I wasn't sure something wouldn't break the munger, there were a bunch of extra files that didn't relate to the core.lvl.
Credits:
Pandemic - for BF2 and the Mod Tools and files/documentation needed
Teancum - For his localize files and original work on Xbox mod
Dark_Phantom - compiling this tool