We got a source code for a pack.bin unpacker however we are still trying to make it work no luck so far.
Credit: Allods Developers Community
the file: https://drive.google.com/open?id=1sx...d7t_gQSimaPoL9
ps: before running the exe you need to change the pack name to ppack.bin the problem seems to happen when stage 2 starts it stops halfway and closes.