text: FM 7-100.1________________________________________________________________________________
  7-61. Reconnaissance fire enables the OPFOR to deliver fixed- and rotary-
  wing air, SSM, cruise missile, and artillery fires (including precision muni-
  tions) on enemy targets within a very short time after acquisition. The
  OPFOR can use reconnaissance fire in offensive and defensive phases of com-
  bat. Assets designated for reconnaissance fire use are under control of the
  IFC commander, and control remains centralized for planning, analysis, and
  evaluation of reconnaissance data, and for execution of the reconnaissance
  fire mission. This type of arrangement allows the assets to execute other mis-
  sions or taskings until the desired HPTs are detected. The IFC commander
  may establish a window of time for assets tasked to support reconnaissance
  fire (based on an intelligence assessment of when the enemy targets should
  be in designated kill zones).
  7-62. The OSC commander selects and establishes the target priority and
  target damage criteria of the combat system component or components to be
  attacked in order to force the favorable condition to conduct a strike. The IFC
  staff and fire support component commanders develop the fire support plan
  designed to conduct reconnaissance fire necessary to create the favorable
  condition. The IFC commander then briefs the fire support plan to the OSC
  commander to ensure compliance with the overall operation plan. The IFC
  executes reconnaissance fire in accordance with the approved fire support plan.
  CLOSE SUPPORT FIRE
  7-63. Close support fire is fire used to support maneuver forces and attack
  targets of immediate concern to units such as battalions and BTGs. The re-
  quirement is to provide a quick response time and accurate fires capable of
  either neutralizing or destroying all types of targets.
  INTERDICTION FIRE
  7-64. Interdiction fire is fire designed to attack targets in depth (such as
  logistics sites or assembly areas) and to prevent enemy follow-on or reserve
  forces from reinforcing or influencing a battle or situation. Generally,
  interdiction fire (when compared to close fire) has a slower response time,
  especially for stationary targets; accuracy may be lower; and the targets are
  generally not as well protected. However, technological improvements such as
  course-corrected rockets, projectiles, and fuzes facilitate long-range precision
  targeting.
  7-65. The OPFOR employs long-range fire systems (operating from dispersed
  areas) to continuously engage targeted forces and systems. Operational and
  tactical RISTA systems direct them.
  COUNTERFIRE
  7-66. Counterfire is fire designed to destroy the enemy fire support infra-
  structure throughout the battlefield. The fire support infrastructure includes
  mortars, cannon, rockets, missiles, fire support C2 and RISTA, and logistics
  assets. Counterfire enables the ground forces to achieve effective fire support
  on the battlefield. It is especially important for the early destruction of the
  enemy’s long-range and precision weapons.