Preparing U.S. Marine Corps Forces, Special Operations Command Critical Skills Operator candidates for the mental, physical, and leadership challenges of Assessment and Selection is the principal goal of the newly-implemented Assessment and Selection Preparation and Orientation Course (ASPOC). The first ASPOC class began Sept. 15. - Preparing U.S. Marine Corps Forces, Special Operations Command Critical Skills Operator candidates for the mental, physical, and leadership challenges of Assessment and Selection is the principal goal of the newly-implemented Assessment and Selection Preparation and Orientation Course (ASPOC). The first ASPOC class began Sept. 15.