I dig Wolf 2 a lot, both its madcap-yet-serious personality and its carnage-or-stealth action, and I can't pretend I didn't enjoy a few more hours of that, but, with the exception of a handful of brief, comic-styled cutscenes and getting to hear someone say "Nazi bell-end", everything that's in here is already available from the main game. You might as well just play (or replay) its many post-campaign side missions and modes, really. I'll be delighted if episode 3 manages to change that.