Sgt. 1st Class Ebony Alexander, noncommissioned officer in charge of brigade medical operations for 2nd Brigade Combat Team, 4th Infantry Division, times Staff Sgt. Nestor Serrano, an infantryman with Company C, 2nd Battalion, 8th Infantry Regiment, 2nd BCT, 4th Inf. Div., during a level II skills lane at Camp Nathan Smith, Nov. 4. The lane is part of a series of tests Serrano must go through in order to gain membership into the Sergeant Audie Murphy Club.