Interesting...C4D comes with a celshading option for rendering, also better options for applying textures (much simpler to do multiple maps with C4D).
And I think by having Cinema4D I might have shot myself in the foot, gaming-model-wise, because as one might guess from the title, C4D was designed for the making of movies, and as such makes things that are practical for movies (having twenty maps on a model bothers Cinema4D not at all, the celshading option, some other things) but less so for games easier...while ignoring some things that are important to games. I don't even have a polycount function, much less a trianglization one, and trying to convert to or from formats that are better for game modeling is a vast pain.