I don't think it should be taken off either. John 117 is a soldier first, not one who want's personal glory. Revealing him as an individual lessens the Halo story in my opinion. We follow and play as the Chief, but there were and are other Spartans. I like the anonymity of what he looks like also because faces were revealed in ODST and Reach were a let down. I've had years of playing as the Chief and never once really cared what he looked like. Why give that responsibility to some artist, as good as he might be, to put the face to the Master Chief that we have all come to play as an extension of ourselves?