Congratulations to Warren’s newest senior master sergeant selects Published March 21, 2014 By Staff Reports 90th Missile Wing Public Affairs F.E. WARREN AIR FORCE BASE, Wyo. -- Eight 90th Missile Wing master sergeants were selected for promotion to senior master sergeant March 20. Only 999 master sergeants were selected for promotion out of 14,823 Air Force-wide, bringing the selection rate to approximately 6.74 percent. Be sure to congratulate the following promotees: Master Sgt. Collin Adams, 90th Contracting Squadron Master Sgt. Beau Jones, 90th Maintenance Operations Squadron Master Sgt. Joshua King, 90th Civil Engineer Squadron Master Sgt. Dwayne Mayberry, 90th MOS Master Sgt. Brandon Otten, 90th MOS Master Sgt. David Rivera, 90th Force Support Squadron Master Sgt. Gregory Roger, 90th Operations Support Squadron Master Sgt. Tracy Wallace, 90th Maintenance Group