The XM551 Sheridan Misille is a Tier X Collector Light Tank in the U.S.A Nation. In the Update 7.5, ATGM (Anti-Tank Guided Missiles) were removed from both the XM551 Sheridan and T92E1 and replaced with High Explosive Anti-Tank (HEAT) shells. Players who researched the Sheridan before the update received the XM551 Sheridan Missile collector tank for free.