pgdebug | pgdebug is a tool which helps you to debug | Code Inspection library

Petrolution Mod-Tools says this:

This format is used in the games Empire at War and Forces of Corruption.

Each Petroglyph Lua object file is basically a normal Lua 5.0 object file except for three differences:

• The signature for Lua 5.0 object files is "\033Lua". For Petroglyph's Lua object files this is "\033Lup"
• The byte that indicates the file version is 0x50 for the Lua 5.0 object files. Petroglyph's Lua object files use 0x51 (it really IS a 5.0 file though).
• In each function header, Petroglyph's Lua object files have an additional integer right after the "lineDefined" integer that can be ignored.

The additional integer seems to start at 1 for the first function in the file, and then increases by one for every other function, disregarding function nesting. This integer is supposedly used to allow for persistent Lua state during save-games.

It looks like unluac, although primarily for Lua 5.1, also mostly works for Lua 5.0. You'll have to either make slight modifications to it to account for those three differences, or edit the files to undo those changes before running unluac.

Also, Petrolution also has some tools that look like they can do at least some of what you're trying to do.