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TBS PHASE 3 EXAM | NEWEST ACTUAL
EXAM COMPREHENSIVE QUESTIONS
AND VERIFIED ANSWERS GRADED A+
2025 - 2026 UPDATE!
What is a security Plan - โโโ Correct Answer > The platoon commander should develop a plan which utilizes patrols and LP/OPs to deceive the enemy as to the exact location of the main defenses. Security must be maintained at all times when conducting operations. In the defense, the security plan not only ensures that the platoon is ready when the enemy attacks. It also facilitates the offensive action of the platoon in the defense. There are several aspects of the security plan which together help in conducting successful defensive operations. The primary role of engineers in defensive operations is to: - โโโ Correct Answer > Impede the mobility of the enemy. Field fortification. Provide general engineering tasks to amplify sustainability of supported unit. Stand To - โโโ Correct Answer > all Marines are in full equipment with their weapons systems in their primary positions. Leaders at all levels should keep movement to a minimum. The platoon commander should designate brevity codes to signal stand-to and must ensure a
timely transition from the priorities of work to stand to. The platoon commander can take the platoon to stand-to any time he/she determines the platoon is vulnerable to enemy observation/attack, or at pre-determined times. Most units go to stand to 30 minutes prior to and after sunrise and sunset, along with departure and re-entry of friendly patrols Suprise - โโโ Correct Answer > Strike the enemy at a time, at a place, or in a manner for which he is unprepared Economy of force - โโโ Correct Answer > Allocate minimum essential combat power to secondary efforts Alert Status - โโโ Correct Answer > status determines what percentage of the unit is manning their weapons in the primary positions in the defense. A platoon should never go below 25% security at any time, and should ensure that all squad automatic weapons and/or larger machine guns are manned. Upon occupation, the platoon should remain at 100% security until the platoon commander decides to begin the priorities of work. The alert status should be driven by the platoon commander's analysis of the enemy, specifically likelihood of enemy attack. The platoon commander must be constantly updating his METT-TC to determine with the increase or diminish the alert status. It facilitates the accomplishment of priorities of work, the patrolling plan, and the rest plan due to the fact that it frees marines from security responsibilities.
patrols - โโโ Correct Answer > detachment of ground or air forces sent out for the purpose of gathering information or carrying out destructive, harassing, mopping up, or security missions against the enemy. In the defense, patrols provide the platoon commander with timely information on the enemy while denying the enemy the ability to gather information on the platoon's position. Platoons can investigate areas of interest, emplace LP/OPs, and conduct economy of force operations forward of and to the flanks of the engagement area. Patrols are normally used by the platoon commander on routes and areas other than those he/she believes will be most likely used by the enemy. Patrols can be used to notify the platoon commander that the enemy has adopted a different scheme of maneuver than the one planned. The platoon's patrolling effort adds considerable depth to the defensive battlespace and helps to maintain the initiative during defensive operations. Defense in-depth is achieved by - โโโ Correct Answer > - Engaging the enemy at the earliest opportunity with patrols and LP/OP's
- Employing weapons at maximum effective range.
- Using blocking positions, obstacles, and supplementary positions throughout the engagement area
- Planning for decisive use of the least engaged unit and fire support units at the decisive moment in the engagement
- Assign sectors of fire and emplace machine guns on likely enemy avenues of approach. Begin sector bag construction.
- Emplace LP/OP covering most likely enemy avenue of approach for the platoon's defense.
- Verify crew-served weapons sectors of fire, specifically their assigned missions of FPL or PDF. Once verified, begin entrenching positions.
- Verify sectors of fire for all other weapons and emplace sector bags.
- Begin patrol operations.
- Prepare range cards and fire plan sketches.
- Construct primary positions.
- Clear fields of fire for all positions and continue entrenching primary positions until supporting efforts have skirmisher's trenches.
- Establish and register final protective fires.
- Construct skirmisher trenches for supplementary positions on flanks by supporting efforts.
- Establish and disseminate TRPs, trigger lines, etc.
- Once supp pos are at skirmisher trench depth, continue primary position construction.
- Emplace early warning devices on enemy avenues of approach not covered by LP/OP.
- Lay comm. wire and field phones. Bury communication wire.
- Establish rest plan.
- Construct alternate positions to skirmisher trench depth.
- Rehearse least engaged unit movement to supplementary positions.
- Continue supplementary position construction until positions are chest deep.
- Rehearse counterattack and other contingency plans.
their primary mission. Mobility support assists forces to move rapidly, mass, disperse, and be resupplied Battlefield Engineering Functions - โโโ Correct Answer > โข Mobility
- Counter-Mobility
- Survivability
- General engineering Counter-mobility - โโโ Correct Answer > is to delay, channel, or stop movement by the enemy in order to destroy its forces directly or indirectly by enhancing the effectiveness of friendly weapon systems. Survivability - โโโ Correct Answer > A key component of the defense, survivability includes all aspects of protecting personnel, weapons, and supplies. The objective is to reduce exposure to threat acquisition, targeting and engagement, and the effects of weather and thereby contribute to a successful defense. General Engineering - โโโ Correct Answer > encompasses those tasks that establish and maintain the infrastructure required to conduct and sustain military operations. principals of obstacle employment - โโโ Correct Answer > - Covered by Fire
- Observed
- Concealed and employed for surprise
- Employed in depth
- Protected by early warning and anti-handling devices
- Integrated with existing or other obstacles
- Non-Geometric Offensive Categories of Fires - โโโ Correct Answer > Preparatory Fires Fires in support of conduct Fires in support of consolidation SOSRA is the acronym for breaching fundamentals, which are to: - โโโ Correct Answer > Suppress: keep enemy heads down Obscure: make the obstacle reduction difficult to see Secure: secure the breaching sight to prevent enemy interference Reduce: create lanes to cross obstacles Assault: assault the objective Existing obstacles - โโโ Correct Answer > natural and cultural obstacles.
The obstacle plan designates the following: - โโโ Correct Answer > Obstacle responsibilities. General location. Directed/reserve obstacles. Special instructions. The primary role of engineers in offensive operations are to: - โโโ Correct Answer > Ensure uninterrupted movement of friendly forces maintaining momentum of the attack. Provide flexibility to the supported maneuver unit. Degrade the enemy's ability to maneuver. IED Network - โโโ Correct Answer > Tactical leaders and planners intel/ surveillance/ Propaganda Recruiting/ funding Supply/ Facilitators IED makers Emplacers Switch - โโโ Correct Answer > A device for making, breaking, or changing the connections in an electrical circuit.
What is CAS - โโโ Correct Answer > Air action by fixed- and rotary- wing aircraft against hostile targets which are in close proximity to friendly forces and which require detailed integration of each air mission with the fire and movement of those forces." Type 2 - โโโ Correct Answer > will be used when the terminal controller desires control of individual attacks but assesses that either one or a combination of any two or three of the following conditions exist given there is observation on the target: Type 1 - โโโ Correct Answer > when the risk assessment requires them to visually acquire the attacking aircraft and the target under attack. M224A1 60MM LWCMS Mortar - โโโ Correct Answer > Maximum Effective Range 3500m ECR 30m Max Rate of Fire 30 rounds per minute for 4 minutes Sustained Rate of Fire 20 rounds per minute
Occupying Support By Fire - โโโ Correct Answer > - Stealth
- Force Eight Principles of Machine Gun Employment, PICMDEEP - โโโ Correct Answer > Pairs Interlocking fires coordination of fires Mutual Suport Defilade Enfilade Economy of fires Protection Principal Direction of Fire - โโโ Correct Answer > the weapons primary focus is covering a likely avenue of approach, key piece of terrain, or whatever object of interest that unit leader assigns it. Weapon will left and right lateral limits. Final Protective Line - โโโ Correct Answer > the weapon is primarily in a position to employ grazing fires (center of the cone of fire does not pass 1 meter off the deck) across a unit's frontage as a last effort to defend the lines.
7 Steps of Engagement Area Development - โโโ Correct Answer >
- Identify all likely enemy avenues of approach
- Determine likely enemy schemes of maneuver
- Determine where to kill the enemy
- Emplace weapon systems
- Plan and integrate obstacles
- Plan and integrate indirect fires
- Conduct EA rehearsals Types of Defensive Positions - โโโ Correct Answer > Primary Supplementary Alternate Subsequent Primary Positon - โโโ Correct Answer > is the best place to accomplish the assigned mission. Alternate Position - โโโ Correct Answer > is where a unit can still accomplish its assigned mission, but that is occupied when the primary BP becomes either untenable or unsuitable. Supplementary Position - โโโ Correct Answer > allows a unit to address unexpected enemy schemes of maneuver.
Direct Support - โโโ Correct Answer > the unit being supported is assigned fires supporting the platoon. The supported unit assigns the guns a mission and targets; however, tactical control still remains with the Machine Gun Section Leader. Block - โโโ Correct Answer > stop an enemy's advance along a specific avenue General Support - โโโ Correct Answer > If a unit is in support of another unit, it will provide fires to assist the supported units' scheme of maneuver. A unit may be in support of a company and will help any or all units within that company. Attachment - โโโ Correct Answer > the organization assumes complete tactical and administrative control over the unit. Economy of Fires - โโโ Correct Answer > Utilize appropriate weapons systems in accordance with the threat. Establish engagement criteria for crew served weapons to conserve ammunition, make sure the weapon system is appropriate to the threat and to ensure weapon system and crew survivability. What is target Precedence - โโโ Correct Answer > Who do I shoot first? Example: SQD sized elements or larger, Crew Serviced Weapons, etc.
Fire Plan Sketch - โโโ Correct Answer > is a to-scale, graphic representation of the defensive position that is used by the commander to visualize and coordinate the effects of his engagement area and to prevent gaps in his fires 4 Steps of creating a Range Card - โโโ Correct Answer > Step 1 - gunner lays beside gun, sets sights on limit of grazing fire, and then lays the gun on aiming point along the FPL. Step 2 - Team leader walks along the FPL using a standard and measured pace count. Step 3 - When the gunner loses sight of the team leader in defilade, he yells "Mark". The team leader marks the distance and puts it on range card. Step 4 - This process is completed until the terrain denies you grazing fire, or you reach the maximum range of grazing fire for that weapon system. Where should Command Post be placed - โโโ Correct Answer > The platoon commander must select a location, which is generally located behind the Main Effort where they can see the engagement area and effectively command and control the defense during contact with the enemy. Constructing a fire plan sketch - โโโ Correct Answer > 1. Determine appropriate scale for fire plan sketch
M252 81 MM Mortar - โโโ Correct Answer > Maximum rate of fire 30 rounds per minute for 2 minutes Sustained rate of fire 15 rounds per minute Maximum Effective Range 5700m ECR 35m M2A1 .50 Caliber Machine Gun - โโโ Correct Answer > Max Effective Range 1830m Grazing Fire 700m Max Range 7400m Rapid Rate >40 rounds/minute Sustained Rate<40 rounds/minute Weight (total system)128 Lbs MK19 MOD 3 Automatic Grenade Launcher - โโโ Correct Answer > Max Effective Range 2212m Maximum Range 2212m Rapid Rate 60 rounds/minute Sustained Rate 40 rounds/minute ECR 15m
Machine Gun Section: - โโโ Correct Answer > Three squads per section, squad leader, Sergeant, 0331 Two machine gun teams per squad o Team leader, Corporal, 0331 o Gunner, Lance Corporal, 0331 o Ammoman, Private, 0331 In Relation to the Target - โโโ Correct Answer > Flanking Fire Frontal Fire Oblique Fire Enfilade Fire In Respect to the Gun - โโโ Correct Answer > Fixed Traversing Searching Traversing and Searching Swinging Traverse Free Gun IFOMS - โโโ Correct Answer > Intel Breaching Fundamentals Breaching Organization
