text: Fire Support in Depth During Large-Scale Combat Operations
  means, such as target reference points and checkpoints. When using a direction of attack, unit commanders
  designate a point of departure.
  6-77. Final coordination line is a phase line close to the enemy position used to coordinate the lifting or
  shifting of supporting fires with the final deployment of maneuver elements (ADP 3-90). Before crossing
  this line, units make final adjustments to supporting fires to reflect the actual situation versus the anticipated
  situation. The location should be easily recognizable on the ground. The final coordination line is not an
  FSCM.
  6-78. The FLOT normally identifies the forward location of covering or screening forces. It does not apply
  to small, long-range reconnaissance assets and similar stay-behind forces. Friendly forces forward of the
  FLOT should have a restrictive FSCM, such as an NFA, placed around them to prevent friendly fire incidents.
  The CFL should be planned as close as possible to the FLOT without restricting the maneuver operations.
  6-79. Limit of advance is a phase line used to control forward progress of the attack (ADP 3-90). The
  attacking unit does not advance any of its elements or assets beyond the limit of advance, but the attacking
  unit can push its security forces to that limit. Commanders usually select a feature that is easily identifiable,
  perpendicular to the direction of attack, and on the far side of the objective as the limit of advance. The use
  of a limit of advance prevents an attacking force from overextending and reduces fratricide possibilities and
  friendly fire incidents by fires supporting the attack. FSCOORDs plan and execute fires beyond the limit of
  advance.
  6-80. The line of contact is a general trace delineating the locations where friendly and enemy forces are
  engaged (ADP 3-90). Commanders designate the enemy side of the line of contact by the abbreviation
  "ENY." In the defense, a line of contact is often synonymous with the FLOT. A line of contact may be
  combined with an LOD in the offense.
  6-81. A line of departure in land warfare, a line designated to coordinate the departure of attack elements
  (JP 3-31). The purpose of an LOD is to coordinate the advance of the attacking force, so that its elements
  strike enemy forces in the order and at the time desired. An LOD also marks where a unit transitions from
  movement to maneuver. Commanders also use it to facilitate the coordination of fires. Generally, it should
  be perpendicular to the direction the attacking force takes on its way to the objective. Units crossing the LOD
  trigger fire plans and FSCM changes.
  6-82. An objective is a location used to orient operations, phase operations, facilitate changes of direction,
  and provide for unity of effort (ADP 3-90). An objective can be terrain or force oriented. Terrain-oriented
  objectives should be easy to recognize. A higher echelon commander uses terrain-oriented objectives to focus
  the operations of subordinates, focus phase operations, facilitate changes of direction, and provide for unity
  of effort. Commanders determine force-oriented objectives based on known enemy positions. FSCOORDs
  plan fires on, beyond, and to the flanks of objectives IAW the scheme of maneuver and the commander's
  intent. FS attack/delivery systems should be able to range well beyond the objective. A rule of thumb for FA
  assets is that two-thirds of their maximum range should be beyond the objective.
  FIRE SUPPORT CONSIDERATIONS AND CHARACTERISTICS OF THE OFFENSE
  6-83. Audacity, concentration, surprise, and tempo characterize the offense. Commanders maneuver forces
  to advantageous positions before the start of an operation. To shape their main effort, they initiate selective
  contact with enemy forces. The main effort determines the outcome of the major operation, battle, or
  engagement. The main effort will capitalize on the successful application of the characteristics of the offense.
  Audacity
  6-84. Audacity is a willingness to take bold risks. By executing a bold, aggressive plan, a commander can
  seize and retain the initiative, but the risk decisions must be balanced against expected gains. Commanders
  can use FS to demonstrate audacity by:
  * Aggressively applying firepower by massing in an accurate and timely manner.
  * Proactively target and strike critical enemy C2, indirect fire, and sustainment nodes.
  * Placing FS assets forward of supported units maximize range. The commander must ensure proper
  security of FS assets.