Indirect Fire Support

ASOR WIKI > ASOR > Standard Operating Procedures > Indirect Fire Support

On this page:

  1. IDF Team Setup
  2. Deployment
  3. Fire mission request format
  4. Fire adjustments
  5. Communication
  6. Appendices

IDF TEAM SETUP

IDFC – Indirect Fire Team Commander – Communications and Coordination of fire missions.
F1/F2 – Firer 1/2 – Enter firing coordinates and fire on orders of IDFC. Can be more than two for larger IDF Teams.
FO – Forward Observer – Communicates with IDFC with requests for fire missions and adjustments. (optional and can be a squad team member, squad leader or any designated member)

Deployment

Deployment should optimally be maneuvered to maintain to support other elements within the range of Charge 0 (500 metres).

Harbour formation is the preferred deployment formation for maintenance of situational awareness and defensive posture. See Appendix A.

Line formation may be utilised as terrain and the tactical situation dictates. See Appendix B.

Regardless of formation, spacing of five to 10 metres is recommended to minimise risk from counter battery, stray explosives or small arms.

When deploying, consider overheard foliage and nearby building height so as to maintain a clear trajectory.

THUMPER is also authorised to deploy within their formation AT weapons as a defensive option ONLY.

REQUEST FOR FIRE MISSION FORMAT

Standard Format

GRID\POSITION\EXTRA – TYPE – ROUNDS – CONSIDERATIONS – GRID

Hasty Format

GRID – TYPE – ROUNDS – GRID

GRID\POSITION\EXTRA – Always include a physical grid even when calling on marked locations so no confusion occurs on the fire zone. Grids can be 8 figure if needed, ensure you say “8 figure GRID” before you call it. A position can use any map reference to help narrow the position or a division of a grid through bearings like North-West quadrant. Any other information can be included on the end to help identify the fire zone, eg. marked / known terrain features or buildings – keep it short though.

All IDF team map markings are made in PURPLE. Fire missions marked on map should be done so with with a PURPLE dot. If more than 1 target is identified within the Fire Mission request then additional targets are to be labelled ‘T1’, ‘T2′, T’3’, etc respectively. Markers are to remain in place as previously known Fire Missions – which can be called upon later as Pre-Designated targets.

TYPE – The type of round to use, AP, HE, SMOKE. Combinations can also be used.

ROUNDS – The amount of rounds to fire, generally an indication of the spread you want or if a hard target the penetration you need to achieve. Calls for ranging rounds can be made here as well for example 6 range 1 which would mean a single shot will be fired for target adjustment which may be followed by more single adjustments but then 6 rounds will be fired when fire for effect is called.

CONSIDERATIONS – Location of friendly forces if close by is the most common consideration. Other things include the target type and any considerations with it, vehicle halted, infantry in open, infantry in cover, infantry moving west to east.

GRID – Repeat the main grid again to confirm.

FIRE MISSION FORMAT EXAMPLES

Example1:
GRID 012012
HE
4
FRIENDLIES 300m SOUTH
GRID 012012

Example2:
BUILDING GRID 012012 COURTYARD NORTH SIDE
HE
6
ENEMY IN COVER
GRID 012012

Example3:
CLEARING GRID 012012
SMOKE
8
FRIENDLIES CROSSING FROM WEST TO EAST
GRID 012012

Example4 – Hasty:
GRID 012012
HE
4
GRID 012012

 

FIRE ADJUSTMENTS

Commonly a single round can be used to ‘range’ a position and once the round is on target a fire for effect can be called or a final adjustment can be issued with a fire for effect.

Adjustments are made using basic cardinal adjustments with adjusting distance included. This is not true IRL but is how we will communicate changes in targeting for speed to ensure timely rounds on target.

If you are looking at a target to your North and the fall of shot lands between you and the target say 100m short but is inline a call for ‘Adjust NORTH 100 REPEAT’ would mean an adjustment of 100m North with the same shot or shots as before. If you are using a ranging shot you could call ‘Adjust NORTH 100 FIRE FOR EFFECT’ which doubles as the adjustment and the call for the original fire mission.

 

COMMUNICATION

Communicating a fire mission can be a long and detail process, hopefully this breaks it down enough to key info and keep things flowing. Because it can be a long process keep things brief and abbreviated at all times.

LR Ch1 is utilised for fire missions to maintain situational awareness for other elements. Ch1 should continued to be used until the fire mission is announced complete.

Fire adjustments are to be communicated on THUMPER’s dedicated net, LR Ch3, but communication should resume on Ch1 once adjustments are complete.

Standard Format

Used for most fire missions.
FO – Request Fire Mission Over
IDFC – Send Fire Mission Over
FO – FIRE MISSION DETAILS
IDFC – CONFIRMATION GRID READ BACK
FO – ACK OR CORRECTION
ISFC – TIME ROUND OUT (time is given in seconds and as individual number ie TWO-ZERO for 20secs)
FO – Splash Over (Radioed on first impact of first round confirms rounds are at least in vicinity)
IDFC – Splash Out (acknowledge team has rounds striking, wait for BDA)
FO – BDA or Adjustment (if BDA finish with fire mission complete – out)

Immediate Fire Format

Used in emergency situations, less accurate and less feedback to firers.
FO – Request Immediate Fire Over
IDFC – Send Fire Mission Over
FO – HASTY FIRE MISSION DETAILS
IDFC – TIME ROUND OUT
FO – BDA or Adjustment (may not be a BDA in immediate but a fire mission complete – out should still occur to release THUMPER for further tasking)

COMMUNICATION EXAMPLES

Example1 – Standard:
FO – THUMPER this is Vandal Request Fire Mission Over
IDFC – This is THUMPER Send Fire Mission Over
FO – GRID 012012, HE, 6, FRIENDLIES 200m SOUTH, GRID 012012 Over
IDFC – HE, 6, GRID 012012 Over
FO – ACK
**time for calculations (no other fire missions are accepted in this time**
ISFC – FOUR FIVE ROUND OUT
FO – Splash Over
IDFC – Splash Out
FO – Good Effect on target fire mission complete OUT.

Example2 – Adjustments:
FO – THUMPER this is Vandal Request Fire Mission Over
IDFC – This is THUMPER Send Fire Mission Over
FO – GRID 012012, HE, 6, 1 ROUND ADJUSTMENT, TROOPS IN OPEN, GRID 012012 Over
IDFC – HE, 6, 1 ADJUST, GRID 012012 Over
FO – ACK
**time for calculations (no other fire missions are accepted in this time**
ISFC – THREE ZERO ROUND OUT
FO – Splash Over
IDFC – Splash Out
FO – UP 100 LEFT 200 Over
IDFC – UP 100 LEFT 200 Over.
ISFC – THREE ZERO ROUND OUT
FO – Splash Over
IDFC – Splash Out
FO – Fire for Effect Over
ISFC – THREE ZERO ROUND OUT
FO – Splash Over
IDFC – Splash Out
FO – Targets Destroyed Fire Mission Complete – OUT

Example3 – Hasty:
FO – THUMPER this is Vandal Request Immediate Fire Over
IDFC – VANDAL Send Fire Mission Over
FO – GRID 012012, HE, 8, GRID
IDFC – FOUR ZERO ROUND OUT
FO – REPEAT OVER
IDFC – ACK REPEAT OVER
IDFC – FOUR ZERO ROUND OUT
FO – Fire Mission Complete – OUT

Appendices

Appendix A

Appendix B

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