Sounds like a perfect job for us, are you attached to a UI system in particular like ngui, ugui, coherent or Scaleform or would you leave that up to us?
Looks like they hooked it up to the corrective blend shape system. When the rig transitions into a blend shape it also blends into the new displacement map that goes along with it.
While we do not have any immediate plans, restructuring the undo system to split the camera into a separate undo track is something we'll likely consider in the future.
Update: Health system implemented!!! Works for both enemies and Character! No pictures in the update this week. busy week, you'll just have to trust me on this one :P
That's actually some pretty impressive rigging. Good deformation, built-in squash and stretch, a muscle system, even modeled folds and wrinkles for certain deformations. Good stuff.
I don't understand what you mean by 'equivalent'? do you want to make a lower polygon count model and are having problems with automatic reduction systems?
Are you looking for help creating them with the aptly named curved tube brushes, or are you looking to customize the tube through the Insert mesh/ multi mesh system?
Helped implement a FP swimming system, was my first time animating swimming in first person, rather happy with the outcome on it. https://www.youtube.com/watch?v=C9_PIA8lkGE