1. It is my understanding that division/unit patches were permitted on both shoulders....and that the left shoulder patch denoted 'current ' unit and the right shoulder patch denoted a soldiers's 'previous' unit. Is that correct? 2. I believe that a MOS 745 (Rifleman) was required to qualify for the CIB. If a soldier met that MOS requirement and engaged only in prisoner guard duty, could he be eligible for a CIB?