text: Chapter 4
  4-110. The fire support rehearsal should last no more than 90 minutes and should ensure the synchronization
  of the fire support effort withthe maneuver plan. The maneuver plan includes ensuring observers are in the
  proper location at the proper time to observe planned targets, commonly known as the BCT commander’s
  observation plan.
  4-111. Time is inevitably short, so the rehearsal focuses on the critical portions of the plan, to include
  preplanned fires, and to ensure Soldiers correctly integrate and synchronize within the operational
  framework. Additionally, the fire support rehearsal should address action during degraded or intermittent
  communications to ensure interoperability to preserve the effectiveness of the force and maintain the
  initiative over the enemy. The critical document supporting the fire support rehearsal is the fire support
  execution matrix,which includes all fire support tasks.To conduct the fire support rehearsal,the BCT follows
  the same procedures outlined in the combined arms rehearsal sequence of events.
  Sustainment Rehearsal
  4-112. The BCT sustainment rehearsal ensures the synchronization of sustainment efforts before, during,
  and after combat operations. The sustainment rehearsal validates the who, what, when, where, and how of
  support. The sustainment rehearsal usually occurs after the combined arms and fire support rehearsals,which
  should not last more than 90 minutes.
  4-113. The brigade support battalion(BSB)commander hosts the rehearsal for the BCT commander. The
  support operations officer facilitates the rehearsal to ensure rehearsal of critical sustainment events. BCT
  attendees include the BCT XO, personnel staff officer (S-1), surgeon, chaplain, S-2 representatives, S-3
  representatives, logistics staff officer (S-4) representatives, and signal staff officer (S-6) representatives.
  Subordinate unit representatives include the BSB commander, the support operations officer, the brigade
  support medical company (known as BSMC) commander, and each maneuver battalion XO, S-1, S-4, and
  medical platoon leader,as well as the forward support company (FSC) commander,mobility warrantofficer,
  and distribution company commander. The primary document used at the sustainment rehearsal is the
  sustainment synchronization matrix. (Seechapter 9for additional information.)
  Combined Arms Rehearsal
  4-114. The combined arms rehearsal ensures that subordinate plans synchronize with those of other units,
  and that subordinate commanders understand the intent of the higher headquarters. Usually, the BCT
  commander, XO, primary staff, and subordinate battalion commanders and their S-3s attend the rehearsal.
  Based upon the type of operation,the commander can modify the audience, such as the commander of the
  BCT reserve and attachments to the BCT. If invited,flank units and the higher headquarters may attend the
  combined arms rehearsal if time and distances permit.The combined arms rehearsal is a critical opportunity
  for enablers to synchronize activities in support of the BCT.
  4-115. The execution matrix,DST,and operation order outline the rehearsal agenda. These tools,especially
  the execution matrix, drive and focus the rehearsal. The commander and staff use them to control the
  operation’s execution. Any templates,matrixes,or tools developed within each of the warfighting functions
  should tie directly to the supported unit’s execution matrix and DST. Examples include an intelligence
  synchronization matrix orfires execution matrix.
  4-116. The combined arms rehearsal should last no more than two hours; however, the combined arms
  rehearsal is METT-TC dependent,so if the time allotted is insufficient to rehearse the entire operation,the
  staff must give priority to those critical events that demand a rehearsal. The staff rehearses the most important
  events first and continues to rehearse subsequent events as time permits. Rehearsals that integrate airspace
  use facilitate synchronization of operations and validate airspace user priorities and requirements. All
  combined arms rehearsal participants arrive at the rehearsal prepared to talk their portion of the operation.
  EXECUTE
  4-117. Executionis the act of putting a plan into action by applying combat power to accomplish the mission
  and adjusting operations based on changes in the situation (ADP 5-0). The BCT commander positions where
  best to exercise command and control by applying military expertise ensuring the ethical application of force
  during execution. This may be forward of the main or tactical command post (TAC [graphic]) to provide