Why the hell would they mark you on the base mesh before taking it into zbrush? I can understand the technical side, all quad meshes, evenly spaced are ZB friendly, blah blah blah. However, at this stage its all about the art and creativity, the technical stuff can come later and shouldn't get in the way of getting your hands dirty and creating nice art.
(maybe Staffs uni needs some fresh lecturers
Keep at it, and remember your anatomy. What is the character for? Do you have a design brief outside of "getting a human body into UDK"?