for infantrymen, in preparation for Brigade-level training. A 2019 marksmanship manual "TC 3-20.40, Training and Qualification-Individual Weapons" (the Dot-40) now mandates the use of the simulators, as if the Soldier were in combat. The Dot-40 is to be used by the entire Army, from the Cadets at West Point, to the Active Army, the Army Reserve, and Army National Guard; the Dot-40 tests how rapidly Soldiers can load and reload while standing, kneeling, lying prone, and firing from behind a barrier. The marksmanship tests of a Soldier's critical thinking, selecting targets to shoot at, in which order, and the accuracy of each shot are recorded by the simulators. Stryker training Up to a platoon-sized unit of a Stryker brigade combat team, and dismounted infantry, can train on Stryker simulators (Stryker Virtual Collective Trainer – SVCT), which are in the process of being installed at 8 home stations. The 4th is being completed. Forty-five infantrymen (4 Stryker shells) or thirty-six scouts (6 Stryker shells) can rehearse their battle rhythm on a virtual battlefield, record their lessons learned, give their after-action reports, and repeat, as a team. The Stryker gunner's seat comes directly from a Stryker vehicle and has a Common Remotely Operated Weapon Station (CROWS) and joystick to control a virtual .50 caliber machine gun or a virtual 30 mm autocannon. Other CROWS configurations are possible. Digital air ground integration ranges (DAGIRs) Live-fire digital air ground integration ranges (DAGIRs) were first conceptualized in the 1990s, and established in 2012, with follow-on in 2019. The ranges initially included 23 miles of tank trails, targets, battlefield effects simulators, and digital wiring for aerial scorekeeping. These ranges are designed for coordinating air and ground exercises before full-on sessions at the National Training Centers. Training against OPFORs To serve a role as an Opposing force (OPFOR) could be a mission for an Army unit, as temporary duty (TDY), during which they might wear old battle dress uniforms, perhaps inside-out. TRADOC's Mission Command Training Program, as well as Cyber Command designs tactics for these OPFORs. When a brigade trains at Fort Irwin, Fort Polk, Joint Pacific Multinational Readiness Center, or Joint Multinational Training Center (in Hohenfels, Germany) the Army tasks 11th Armored Cavalry Regiment, 1st Battalion, 509th Infantry Regiment (Abn), 196th Infantry Brigade, and 1st Battalion, 4th Infantry Regiment, respectively, with the OPFOR role, and provides the OPFOR with modern equipment (such as the FGM-148 Javelin)