How does the Rig course differentiate from the Core course? My understanding is that Rig is more exclusively aimed at rigging a biped character, whereas Core is the fundamentals of everything rigging? Does Core not delve into rigging a biped character as in depth as Rig does?
If so, should I start with Core first, and then jump into Rig afterwards?
Yeah, Core is fundamentals stuff, a big picture overview of rigging, covering general concepts. Then the other courses go into the nitty gritty and you start utilizing what you learned with Core to go hands on for reals. So it's better to start with Core and the fundamentals and then go into the stand alone courses that teach you the application of it all.