Hi Google the following:
C4D ,retarget tag, mocap,
C4D is a great all around 3D application.
But to be very frank ,you have made the worst possible choice
if you plan on retargeting “hours” of motion capture in maxon
Retargeting of mocap to custom rigs is technically possible with C4D
however this is the area ,where most would agree, that C4D’s native tools are the weakest in the industry particualry at its price point
If this is a one shot project and there is a budget then hire someone else who is using C4D with an external retargeting solution such Ikinema,Motionbuilder or even Reallusion Iclone Pro.
It is best to learn the fundamental principles of Character animation before getting into a heavy Mocap workflow,
However if you plan on an all mocap workflow in C4D
you are in for alot of labor intensive work.
But please google those terms and read for yourself.