To make that model look smooth apply a smoothing tag, which should export.
If anyone hasn't got the skeleton to load into Cinema 4D 6 here is one of mine; Apologies if this looks like a take over, but it should help those with C4d 6
The skeleton should work fine for any character, it is set so you don't get some of the funkyness you do with some rigs.
To apply onto a model follow these steps:
Select the vertices you want:
Go to set vertex weight in the selection menu then click OK
Click on the new tag in the object manager, right click, edit then change the name to what you are to put in the bone 'restriction tag' (Or what I've put in this case) I've put for this particular one 'left upper arm'
Here is the content of the bone 'left upper arm' restriction tag, this will set any vertices labelled 'left upper arm' to the bone.
Once you've rigged your character, fix the bone, so now you can move them and so will the character.