U.S. Marine Corps Warrant Officer Gregory Zarger, an expeditionary airfield and emergency specialist assigned to Marine Wing Support Squadron 271, Marine Aircraft Group 14, 2nd Marine Aircraft Wing, measures the soil subsurface of the airfield with a dynamic cone penetrometer while attending the Weapons and Tactics Instructor (WTI) Course at Marine Corps Air Station Yuma, Ariz., March 31, 2015. WTI is a seven-week training event hosted by Marine Aviation Weapons and Tactics Squadron One (MAWTS-1) cadre. MAWTS-1 provides standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photo by Lance Cpl. Travis Jordan, 3rd MAW Combat Camera/ Released)
<br>Unit: 3D Marine Aircraft Wing Combat Camera
Lance Cpl. Travis Jordan
Taken on 31 March 2015
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