Precision Weapons Section in Marine Corps Base Quantico was called the Marine Corps DMR and was intended for use by security teams (special reaction teams, fleet antiterrorism security team companies), and Marine scout snipers in the cases where a semiautomatic rifle would be more appropriate than the standard bolt-action M40A1/A3 rifle. The USMC Rifle Team currently uses the M14 in shooting competitions. Some original-production M14s, not to be confused with M21 rifles, were in use by the Army until the Afghanistan and Iraq Wars, when they began to be employed as DMRs and sniper rifles. A 2009 study conducted by the Army claimed that half of the engagements in Afghanistan occurred from beyond . American 5.56×45mm NATO service rifles were ineffective at these ranges, which prompted the reissue of thousands of M14s. Common modifications included scopes, fiberglass stocks, and other accessories. The 1st Battalion of the 3rd United States Infantry Regiment ("The Old Guard") in the Military District of Washington is the sole remaining regular U.S. Army combat field unit where the M14 is still issued as the standard rifle, along with a chromed bayonet and an extra wooden stock with a white sling for military funerals, parades, and other ceremonies. The United States Air Force Honor Guard uses a version of the M14. The U.S. Navy Ceremonial Guard and Base Honor Guards also use the M14 for three-volley salutes in military funerals. It is also the drill and parade rifle of the United States Military Academy, United States Naval Academy, United States Air Force Academy, The Citadel, Norwich University, Virginia Military Institute, and North Georgia College and State University. U.S. Navy ships carry several M14s in their armories. They are issued to sailors going on watch out on deck in port, and to backup alert forces. The M14 is also used to shoot a large rubber projectile to another ship when underway to start the lines over for alongside refueling and replenishment. Various sniper variants have been used by the United States Navy SEALs. Often mistaken for the M21 in the overt literature, only one of them has received a standard name in the U.S. military designations system: M25, developed by the Special Forces. SEALs also use the Mk 14 Mod 0 enhanced battle Rifle for close-quarters battle and in a designated marksman role. "Delta Force" units are known to have used M14 sniper variants. Eric L. Haney indicated