text: Chapter 3
  continuous assessment of the current situation used to determine if the current operation is proceeding
  according to the commander's intent and if planned future operations are supportable (ADP 5-0).
  3-56. Any variable that could affect the mission is a factor. Before the estimate is started, available relevant
  information must be collected. Once this information has been assembled and the factors that could affect
  the plan have been identified, they should be listed and arranged in priority. The estimate includes analysis
  in the context of the commander's intent for the ongoing and future operations. For more information on
  running estimates see ADP 5-0. The FSCOORD and FSE produce and maintain the FS running estimate and
  consider:
  * The higher HQ specified and implied tasks.
  * Active ACMs affecting friendly fires.
  * The task organization of subordinate forces and their missions.
  * The capabilities and limitations including the status of FA weapons, FA ammunition, FA WLRs,
  CAS, and other related fixed wing support, and any other possible asset from the holistic FS
  system at each echelon of command (AI/SEAD).
  * The position of friendly and enemy fires capabilities.
  * FA and WLR survey support.
  * Established and recommended FSCMs.
  * The impact of ROE and law of land warfare.
  * The impact of terrain, and weather on friendly and enemy forces (such as smoke, CAS, and AI.)
  * Information collection plan support and requirements.
  * Initial HPTL.
  * FS input to the IPOE analysis.
   COAs open to the enemy artillery commander, especially the most probable COA. These are
  derived from the intelligence estimate and knowledge of enemy artillery doctrine.
   The enemy dispositions (including frontage and depth), the degree of protection afforded the
  enemy, objectives for subordinate forces or units, the number of phases, and the likely
  frontage and depth of the assault. These will affect the allocation of fire support resources to
  subordinate units.
   The mobility of the enemy artillery and its speed of movement to contact and withdrawal.
  * The enemy EW situation.
  * The identification of HPTs (derived from target value analysis and IPOE).
  * The commander's information requirements (derived from the intelligence estimate).
  * The availability and condition of roads, trails, and likely position areas. This leads to the
  coordination of movement and position areas with the operations staff.
  * Ammunition consumption factors (type and quantity), pre-positioning requirements, and priority
  of sustainment.
  * The reliability and range of communications.
  * EFSTs and purposes.
  * The time required for positioning and technical preparation to engage targets.
  * The time to be ready to support the operation.
  Mission Analysis
  3-57. Mission analysis by the FSCOORD and the FA staff starts parallel planning activities. Mission analysis
  begins with a review of the commander's intent one and two levels higher and focuses on the rapid
  development of the supported commander’s IPOE; identification of specified, implied, and essential tasks to
  include those for FA formations; an initial assessment of FS survivability and employment considerations;
  and a restatement of the mission. By providing the most current running staff estimates after the first warning
  order, FA CPs can assist in updating the supported HQ FS, graphics, facts and assumptions, and staff running
  estimates. FA unit input includes but is not limited to analysis on enemy indirect fires systems and formations
  through the reverse IPOE process and ammunition, positioning, and security requirements.