Extracting .oppc files properly

I tried extracting some bits and pieces from Warmastered Edition of Darksiders using QuickBMS with existing modified extraction script that I found in Xentax thread http://forum.xentax.com/viewtopic.php?f=10&t=9172. The extraction was completed and packed automatically as .bin file. Problem is, I’ve tried using some apps to extract the .bin file using powerISO and WinISO but no luck, which ends with error like “The format is invalid or unsupported”.

And Space Marine Tools for oppc extration isn’t working, even both games are running on the same engine.

Any kind of help would be appreciated.