text: Mission Command
  4-104. Subordinate units conduct rehearsals after they complete their plans and issue orders, if possible.
  Rehearsals allow subordinate leaders and Soldiers to practice synchronizing operations at times and places
  critical to mission accomplishment. Effective rehearsals throughout the BCT imprint a mental picture of the
  sequence of the operation’s key actions and improve mutual understanding and coordination of subordinate
  and supporting leaders and units. Four common rehearsals at the BCT level,although not inclusive,are the
  reconnaissance and security rehearsal,the fire support rehearsal,the sustainment rehearsal and the combined
  arms rehearsal addressed in paragraphs 4-105through 4-116. (SeeFM 6-0 for additional information.)
  Reconnaissance and Security Rehearsal
  4-105. The BCT conducts reconnaissance and security rehearsals to ensure that the correct information is
  gathered;and that units and Soldiers gathering the required information have a sound plan for insertion and
  extraction. Usually, the BCT commander, XO, S-2, S-3, fire support coordinator (field artillery battalion
  commander) and fire support officer, brigade assistant engineer, Cavalry squadron commander, other
  subordinate maneuver commanders as required, and military intelligence company commander attend the
  rehearsal. Other BCT staff cells and elements should have a representative attending (for example, signal,
  sustainment, information operations, protection, aviation, psychological operations (PSYOP), cyberspace
  operations,and civil affairs operations).
  4-106. The reconnaissance and security rehearsal should last no more than one hour. The documents needed
  to run the reconnaissance and security rehearsal includes the information collection matrix,the information
  collection overlay, the reconnaissance and security overlay, and the enemy situation template and event
  template and its associated matrix (see chapter 5). Rehearse the most important NAI first, then those that
  answer the BCT commander’s priority intelligence requirements. Continue to rehearse subsequent NAIs as
  time permits. Each participating commander confirms the purpose (such as priority intelligence
  requirements) and location (such as an NAI) for each of the collection assets. Commanders also confirm to
  whom the information is reported and the means of communicating that information.
  Note.Due to the inherent risk associated with surveillance and reconnaissanceteams/units must
  rehearse withdrawal under fire and “in extremis”extraction to include supporting aviation (both
  lift and attack assets).
  Fire Support Rehearsal
  4-107. The BCT fire support rehearsal is crucial to mission accomplishment because it ensures that fires—
  the use of weapons systems or other action to create a specific lethal or nonlethal effects on a target
  (JP3-09)—synchronize with the scheme of maneuver. The fire support rehearsal focuses on maximizing the
  ability of fire support systems to support the maneuver plan and achieve the commander’s intent.
  4-108. The fire support rehearsal (including any augmenting fire support from the division artillery or a
  field artillery brigade) may be used to prepare for a combined arms rehearsal or it may be used after a
  combined arms rehearsal to refine and reinforce key fire support tasks. If the fire support rehearsal is held
  first,changes from the combined arms rehearsal may require a second fire support rehearsal. If a combined
  arms rehearsal is not conducted,a fire support rehearsal may serve as the primary preparation for execution
  of the fire support plan. The unit may conduct the field artillery tactical rehearsal either before or after the
  fire support rehearsal. The field artillery technical rehearsal is always held last after the target refinement
  cutoff time.
  4-109. The BCT commander, XO, S-3, and subordinate units attend the fire support rehearsal. The BCT
  staff officers attending include the air liaison officer,assistant brigade engineer(known as ABE),chemical,
  biological, radiological, and nuclear (CBRN) officer, air and missile defense officer, and brigade aviation
  officer. Subordinate units often bring personnel that include the S-3,the fire support officer,scout,and mortar
  platoon leaders. Representatives of reinforcing fire support units should participate when possible. The BCT
  field artillery battalion commander assisted by the BCT fire support officer usually supervises the rehearsal
  for the BCT commander.