The second step. Export your model out of Zbrush to an obj. Now, I didn't want to risk crashing the machine when I did that, so instead of exporting the full high res model wich was on 8 subdivisions, I decided to step down to 6 subdivs and ex[prt that. Lost a bit of detail, but really, at this point it should matter. Zbrush is only used to flesh out the model (like a 3D scanner would if we were following the "making of leon" pipeline. ( http://www.cgtoolkit.com/makingof.htm ).