Marines with Golf Company, 2nd Battalion, 7th Marine Regiment, patrol through the construction site during Operation Golden Gate in Sangin, Afghanistan, Nov. 10, 2012. Golf Co. is tasked with providing security for the entire construction site along the Helmand River for the duration of the construction project. - Marines with Golf Company, 2nd Battalion, 7th Marine Regiment, patrol through the construction site during Operation Golden Gate in Sangin, Afghanistan, Nov. 10, 2012. Golf Co. is tasked with providing security for the entire construction site along the Helmand River for the duration of the construction project.