A Ground Unmanned Support Surrogate follows the beacon signal of Pfc. Dylan Hoffstatter, right, grenadier for 3rd Platoon, Company G, 2nd Battalion, 3rd Marine Regiment, during a 2010 evaluation of the GUSS system during a Rim of the Pacific 2010 exercise. More than 150 U.S. Marines and a team of Navy civilian engineers continued testing GUSS and a myriad of unmanned systems at a Fort Pickett, Va., experiment from July 23 to Aug. 7, 2012. They tested new ways of using unmanned vehicles to increase situational awareness and decrease Marines' exposure to improvised explosive devices.