Chrrox once wrote a bms script to extract the .pac files, which produced various files including .bin. The .bin files I believe are what holds the models and textures, however I can't extract them with any script (even though someone seems to have been successful with that in the past). It seems to be an archive but I'm not entirely sure, but this tool http://forum.xentax.com/viewtopic.php?p=109872#p109872
apparently decompresses some files, I don't know if it's useful in this case.
Anyway, if anyone has any insight on how to get these bin files extracted, it would be really appreciated.
Sample: https://drive.google.com/file/d/11T-EAT ... sp=sharing