Keywords: US Navy 100115-N-1906L-003 Master-at-Arms 3rd Class Chris Taylor, left, and Chief Master-at-Arms Tony Guist, both assigned to Maritime Expeditionary Security Squadron (MSRON) 7.jpg en GUAM Jan 15 2010 Master-at-Arms 3rd Class Chris Taylor left and Chief Master-at-Arms Tony Guist both assigned to Maritime Expeditionary Security Squadron MSRON 7 complete a set of pull-ups at the second of 10 training stations set up for Monster Mash at Naval Base Guam Every quarter MSRON-7 Sailors complete a Monster Mash exercise a course designed to demonstrate both core skills and physical strength U S Navy photo by Jesse Leon Guerrero/Released 2010-01-15 100115-N-1906L-003 Navy http //www navy mil/view_image asp id 80306 U S Navy photo by Jesse Leon Guerrero PD-USGov-Military-Navy Military in Guam Master-at-arms Maritime Expeditionary Security Squadrons |