CHAPTER 2

DUTIES OF THE
FIRE SUPPORT TEAM AND THE OBSERVER

2-1. FIRE SUPPORT TEAM

a. Personnel and Equipment. Indirect fire support is critical to the success of all maneuver operations. To ensure the accuracy of indirect fires, qualified observers are needed to locate targets and fires. Forward air controllers (FACs) and firepower control teams (FCTs) provide the expertise for close air support (CAS) and naval gunfire (NGF) respectively. For artillery and mortar support, FIST personnel act as the observers, or eyes, for the maneuver company. The FISTs are attached to maneuver elements at company level during deployment for training or hostilities. They are normally assigned to the artillery units providing direct support to maneuver. Although the personnel and equipment in each FIST vary depending on the type of force supported, each FIST has (at least) a four-man headquarters. The headquarters personnel include the company FSO (an FA lieutenant), a fire support sergeant (an SSG), a fire support specialist (an SPC), and a radiotelephone operator (RATELO) and driver (a PFC). In addition to the FIST headquarters, a two-man FO party is authorized for each infantry platoon. Table 2-1 shows personnel and major equipment authorizations for each FIST. Transportation for platoon FO parties is provided by the supported force.

Table 2-1. FIST PERSONNEL AND EQUIPMENT

b. Responsibilities. The mission of the FIST is to provide fire support for the maneuver company. To accomplish this mission, the FIST is responsible for the five tasks discussed below.

2-2. DUTIES OF FIRE SUPPORT TEAM PERSONNEL

a. Company Fire Support Officer. The primary duty of the company FSO is being the FSCOORD at company level. He is a full-time fire support advisor to the maneuver company commander, planner, and coordinator. The company FSO advises the commander on the capabilities, limitations, and employment of all fire support assets available to support his operation. These assets may include the M981 FISTV, the laser target designators, and the fire support weapon systems. The company FSO bases his actions on the needs of the supported force as directed by the maneuver commander's guidance. Additional responsibilities of the company FSO include the following:

b. Fire Support Sergeant. The fire support sergeant is the company FSO's assistant. Therefore, he must be able to perform all of the duties of the FSO and act in his absence. The duties of the fire support sergeant include the following:

NOTE: Several training devices exist that the fire support sergeant can use to train the FIST. Appendix C provides information on these training devices.

c. Fire Support Specialist. The duty of the fire support specialist is to help the fire support sergea.nt in the performance of his duties. His duties include the following:

d. Forward Observer. At platoon level, except in tank companies and armored cavalry troops, the FO acts as the eyes of the field artillery and mortars. As the maneuver platoon's fire support representative, the primary duty of the FO is to locate targets and call for and adjust indirect fire support. Also, the FO must be able to do the following:

e. Radiotelephone Operator. The RATELO must be able to set up, operate, and maintain the equipment of the FIST headquarters or the platoon FO party. As a member of the FIST headquarters or the FO party, the RATELO must be able to perform the duties of the fire support specialist at the FIST headquarters or of the FO at the infantry platoon.

2-3. FORWARD OBSERVER CONTROL

a. Control Options. When monitoring his FO's calls for fire, the company FSO has three control options available. After considering the tactical situation, the degree of training of his FOs, and the availability of fire support assets, he determines which option is best suited to the mission. He monitors all calls for fire regardless of the option employed.

b. Tailoring. Since the level of training and the tactical situation vary for each observer, the company FSO may assign each observer under his control an appropriate option. For example, the 1st Platoon FO may be decentralized, the 2d Platoon FO may be predesignated, and the 3d Platoon FO may be centralized.

2-4. FIRE SUPPORT TEAM VEHICLE (M981) EMPLOYMENT OPTIONS

The FISTV, when used as a FIST HQ, may be employed by use of one of three options. The company FSO must advise his maneuver commander as to the means of employment that will best allow him to do his job. Appendix D provides additional information on the FISTV.

a. Option One. In the first option, the entire FIST HQ operates inside the FISTV to provide fire support to the maneuver company. From the FIST EIQ, the company FSO monitors all calls for fire from the platoon FOs. He monitors all company activities on the company command net and coordinates fire support with the battalion (bn) FSO on a fire support coordination net. This method allows the company FSO to be at the focal point of all fire support communications within the company zone of action. The disadvantage of this option is that the company FSO is completely dependent on frequency modulated (FM) radio communications to coordinate with the maneuver commander.

b. Option Two. In the second option, the company FSO or his representative works out of the commander's vehicle. The FISTV is positioned elsewhere in the company area to optimize its lasing and communications capability. The person with the commander takes an AN/PRC-119 and a DMD to the commander's vehicle so he can request fires and maintain contact with the FISTV. If the company FSO is with the commander, he can receive clear, concise guidance from the commander as to his plans. The disadvantage is that the company FSO is removed from the center of fire support activity; his ability to conduct any coordination is severely degraded. Any representative with the commander must still relay the commander's intent to the FIST HQ by radio. When advising the commander, the company FSO must consider the type of commander's vehicle. For example, if the commander's vehicle is a tank, he has no room in it for extra personnel. Removing one of his crew would degrade the capability of his main gun. Fire support personnel in the commander's vehicle must be able to see the battlefield.

c. Option Three. The third option is not selected by the company FSO but is directed by higher headquarters. The company FSO and the fire support specialist take two AN/PRC-119s and the FIST DMD and work from the commander's vehicle. The FISTV and the remaining equipment are used by higher headquarters as a COLT. This option severely inhibits fire support by taking away both the company's lasing capability and half of its fire support communications capability.

2-5. OBSERVATION POST SELECTION

The selection of the observation post (OP) is critical to the ability of the observer to effectively call for fire and to survive. The maneuver commander and FSCOORD share responsibility to ensure that fire support personnel are in a position to call for fires according to the plan. This should include consideration of placing FIST or COLT members with the scout element.

a. Self-Location. The observer must accurately determine his position as soon as it is selected. Accurate self-location is a must for accurate target location and, thus, for effective fire with a minimum expenditure of time and ammunition. The observer must aggressively pursue every means to aid him in self-location. In addition to his map and compass, he should use laser range finders, position-locating systems, tank sights for resection, and so forth, whenever these devices are available. The selected position must enable him to do the following:

NOTE: The supported maneuver unit should always keep obstacles under surveillance and be able to call for fires through the supporting FIST. An obstacle not observed and covered by fire is no obstacle at all. The company FSO must check with the maneuver commander to ensure obstacles are under surveillance. This is also verified during rehearsals.

b. Observation. The OP must permit observation of the zone of action of the supported unit. The selection of the OP must be coordinated with that of other observer and maneuver OPs in order to prevent or minimize gaps or dead spaces. Visibility diagrams should be constructed as time permits.

c. Characteristics. Elevated points, such as crests and trees, are often used for OPs. Landmarks and prominent terrain features should be avoided, as these are probably targeted. When selecting an OP, the observer must consider the characteristics of forward slope versus reverse slope. Advantages and disadvantages are shown in Table 2-2.

d. Reconnaissance. Selection of an OP must be based on both map and ground reconnaissance. During the map reconnaissance, the maneuver unit's situation overlay must be used to determine the unit's area of action, potential OP locations, and routes to and from the OP. During the ground reconnaissance, care must be taken not lo disclose the OP. A concealed route to and from the OP must be considered. Once selected, the OP must be occupied, communications must be established, and the OP location must be reported to the FDC. After occupation, the OP should be camouflaged and reinforced to provide cover; and a terrain sketch and a visibility diagram should be constructed. The observer must ensure that any position improvements do not make the OP vulnerable to enemy aerial observation.

2-6. FIRE SUPPORT TEAM VEHICLE (M981) POSITIONING

a. Considerations for the positioning of the FISTV are similar to those for OP selection. The FISTV should be positioned within the unit's zone of action where it can optimize its observation (lasing) capability yet maintain its survivability and communications capability. The crew must consider the factors of mission, enemy, terrain, troops, and time available (METT-T) when selecting a position.

Table 2-2. CHARACTERISTICS OF FORWARD AND REVERSE SLOPE POSITIONS

b. Additional considerations should include the capabilities and limitations of the equipment being employed.

c. When the FISTV is positioned in an offensive operation, it should bound forward, providing overwatch as much as possible. Because of setup time for lasing operations, the FISTV will primarily be a fire support coordination center in an offensive operation. Because of its lack of firepower and protection, it should not be located with the lead element. The FISTV should be positioned where it can communicate with the observers, the commander, and the supporting firing units. If the laser is to be used during the offense, the crew must have advance warning of any impending requirement to move. The FISTV is slower than the supported maneuver vehicles and may have difficulty keeping up during movement.

2-7. COMMUNICATIONS

a. The FIST communications are commensurate with the needs of the force. Therefore, the primary means of communication is normally dictated by the current battlefield situation. Tactical radio (either voice or digital) is used most of the time.

b. Digital communications equipment available for the FIST includes the DMD and the FIST D MD. The DMD is a two-way device that transmits and receives digital bursts over any standard communications equipment. The DMD is portable and is powered by a battery or a vehicle power source. It is easily attached to any -12 series radio, single-channel ground and airborne radio system (SINCGARS), or WD-1 wire. Since the DMD is a two-way device, the observer can send a fire mission and receive a message to observer digitally.

c. The FIST DMD has a four-channel communications capability. It can perform the same functions as the DMD and can serve as a communications relay point. As a relay, it lets the FIST headquarters review, modify, and/or forward calls for fire from the FOs to the appropriate fire support agency.

d. Communications options for the FIST and FIST radio nets are discussed in detail in FM 6-20-40 and FM 6-20-50 and will be included in FM 6-20-20 (now ST 6-20-20) when it is published.