Hi Tom, when you say "sculpting purposes" I was thinking you were talking about displacement brush sculpting like as in ZBrush or 3D-Coat. That's when having a finely diced up mesh as in the link above can be helpful.

But do you instead mean that you want to do sub-d smoothed subdivision and control point manipulation in Cinema4D ? If so then that's a much different thing. For that you'll need to do a process called "retopology" to construct a sub-d smoothing friendly mesh from your original one. The one that MoI exports will not be suitable for use as a sub-d smoothing cage.

Do an internet search on "retopology" to get more information on the conversion process, here's one result:
https://cgcookie.com/course/introduction-to-retopology

But you may be better off just constructing the sub-d friendly mesh in C4D from the beginning though instead of trying to use MoI for that type of result.

- Michael