I have some problems with using arcsys extraction script. It seems to only work with BlazBlue Centralfiction's .pac files, while running it on archives of previous games (Continuum Shift, Chronophantasma) only produces copies of the .pac file with _unpacked in the title. Running the script again on an unpacked file gives the same result.
example:
https://drive.google.com/file/d/18eA-Wd ... share_link