When did they say this was chapter 4?
You know, you're right. They haven't said it officially. I'm basing Chapter 4 off this (http://db-ptr.darthhater.com/items/5...he_hutt_cartel
). Perhaps it isn't chapter 4, perhaps it's just first tidbit of Chapter 4 or an interlude in the Interlude, but you know what, it would be wise for them to tell us that.