Curious about AAA game character animation rigging workflow?

After creating the mesh, do they rig in Maya/Max then use Motionbuilder with mocap data to do the animation? Also, does their rig include spline controllers for helping with the cleanup or do they skip that and do the cleanup in Mobu without spline controllers? Also, does any of them use Max’s biped or is it better to create a rig from scratch? Just curious about their workflow.

Most I know use maya and build custom rig solutions. That also includes a spline rig for spine. Mocap can be cleaned up in mobu or on the control rig in maya tho Id suggest using mobu.
In maya you can add final details like facial anim, and other additional bones that arent represented in mocap.

Cool, thanks for your answer.