Here is a link from the OCS website. I was hunting around looking at pics of the OCC class this summer. This picture, if it comes up shows drill practice. If you look in the front row, the second or third person down- 1 guy is wearing black tennis shoes! Why?
http://www.ocs.usmc.mil/Summer03/C_183%20DrillPrac/OCS2003_0710AA.JPG
Kevin
http://www.ocs.usmc.mil/Summer03/C_183%20DrillPrac/OCS2003_0710AA.JPG
Kevin