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TBS Phase 3 Exam 2025 EXAM QUESTIONS AND
VERIFIED SOLUTIONS |ELABORATED &DETAILED
ANSWERS!!
Given a map, compass, protractor, and target, determine the
direction to the target from the observer's position in mils to
transmit to the fire direction center. (0300-FSPT2002c) - . .
ANSWER ✓✓ Put protractor on your position, determine direction
to target in mils
Given a target and binoculars, spot a round's impact with
binoculars to determine range and deviation in relation to the
target. (0300-FSPT-2002e) - . . ANSWER ✓✓ Labeled every 10
mils, range = over, short, or correct, deviation = on line, # of mils
left, or # of mils right
How are breaching forces organized? - . . ANSWER ✓✓ Support
Force
Breach Force
Assault Force
How do direct and indirect fires support a platoon offensive
SOM? - . . ANSWER ✓✓ Direct and IDF support a platoon
offensive by always providing suppression allowing them to
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close with and destroy the enemy. There is never movement
without suppression.
How is an IED 9 line conducted? - . . ANSWER ✓✓ LINE 1 Date-
time group (DTG): When the item was discovered LINE 2 Unit and
Call-Sign. Location: Grid with description of surroundings. LINE 3
Contact Method: Call-Sign, Frequency, Point of Contact. LINE 4
Type of Ammunition: Dropped, projected, placed, or thrown; give
the number of items if more than one. Be as accurate as possible
in the description (length, width, height, color, markings, wires,
etc.). LINE 5 CBRN Contamination: Yes or no (if yes, report type of
agent, if known). LINE 6 Resources threatened: What the
resource is and whether it is a critical asset. LINE 7 Impact on
mission: How the IED/UXO is affecting the assigned mission.
LINE 8 Protective Measures: Actions taken to protect Marines
and equipment. LINE 9 Recommended Priority.
How is reconnaissance in the offense occomplished? - . .
ANSWER ✓✓ Do COC coordination (preferably twice one before,
one after writing order), from s-2 (intel), s-3 (training/staff), s-4
(logistics), and s-6 (comms)
, identify types of M2 heavy machine gun ammunition without
error. - . . ANSWER ✓✓ dummy, blank, ball, tracer, AP, AP
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tracer, AP incendiary, AP incendiary tracer, Sabot light armor
penetrator, Sabot light armor penetrator-tracer
60mm mortar specs - . . ANSWER ✓✓ M225A1 Cannon 13 lbs,
M170A1 Mortar Mount 13.2 lbs, M64A1 Sight 2.5 lbs, M7A1
Baseplate 9.1 lbs, M8 Baseplate 3.6 lbs, SL-3 Complete 37.6 lbs.
Rates of Fire- Max Rate of Fire 30 rounds per minute for 4
minutes, Sustained Rate of Fire 20 rounds per minute. Maximum
Effective Range 3500m.
81 mm mortars specs - . . ANSWER ✓✓ weight with SL-3
Complete 95.5 lbs. Maximum rate of fire 30 rounds per minute
for 2 minutes, Sustained rate of fire 15 rounds per minute.
Maximum Effective Range 5700m.
Advantages/Disadvantages of Night attack - . . ANSWER ✓✓
ADAVANTAGES OF LIMITED VISIBILITY OPERATIONS
Darkness can conceal the movement of large forces Physical
and psychological factors favor the attacker (shock,
disorientation, and isolation are easier to achieve) Increase the
element of surprise Defender cannot deploy their least engaged
unit (or reserve) as quickly as during the day Compensate for
inferior combat power Avoid heavy losses
DISADVANTAGES
Command and control are more difficult Terrain is more difficult
to traverse The attacker loses momentum because they attack at
TBS Phase 3 Exam 2025 EXAM QUESTIONS AND
VERIFIED SOLUTIONS |ELABORATED &DETAILED
ANSWERS!!
Given a map, compass, protractor, and target, determine the
direction to the target from the observer's position in mils to
transmit to the fire direction center. (0300-FSPT2002c) - . .
ANSWER ✓✓ Put protractor on your position, determine direction
to target in mils
Given a target and binoculars, spot a round's impact with
binoculars to determine range and deviation in relation to the
target. (0300-FSPT-2002e) - . . ANSWER ✓✓ Labeled every 10
mils, range = over, short, or correct, deviation = on line, # of mils
left, or # of mils right
How are breaching forces organized? - . . ANSWER ✓✓ Support
Force
Breach Force
Assault Force
How do direct and indirect fires support a platoon offensive
SOM? - . . ANSWER ✓✓ Direct and IDF support a platoon
offensive by always providing suppression allowing them to
,2|Page
close with and destroy the enemy. There is never movement
without suppression.
How is an IED 9 line conducted? - . . ANSWER ✓✓ LINE 1 Date-
time group (DTG): When the item was discovered LINE 2 Unit and
Call-Sign. Location: Grid with description of surroundings. LINE 3
Contact Method: Call-Sign, Frequency, Point of Contact. LINE 4
Type of Ammunition: Dropped, projected, placed, or thrown; give
the number of items if more than one. Be as accurate as possible
in the description (length, width, height, color, markings, wires,
etc.). LINE 5 CBRN Contamination: Yes or no (if yes, report type of
agent, if known). LINE 6 Resources threatened: What the
resource is and whether it is a critical asset. LINE 7 Impact on
mission: How the IED/UXO is affecting the assigned mission.
LINE 8 Protective Measures: Actions taken to protect Marines
and equipment. LINE 9 Recommended Priority.
How is reconnaissance in the offense occomplished? - . .
ANSWER ✓✓ Do COC coordination (preferably twice one before,
one after writing order), from s-2 (intel), s-3 (training/staff), s-4
(logistics), and s-6 (comms)
, identify types of M2 heavy machine gun ammunition without
error. - . . ANSWER ✓✓ dummy, blank, ball, tracer, AP, AP
, 3|Page
tracer, AP incendiary, AP incendiary tracer, Sabot light armor
penetrator, Sabot light armor penetrator-tracer
60mm mortar specs - . . ANSWER ✓✓ M225A1 Cannon 13 lbs,
M170A1 Mortar Mount 13.2 lbs, M64A1 Sight 2.5 lbs, M7A1
Baseplate 9.1 lbs, M8 Baseplate 3.6 lbs, SL-3 Complete 37.6 lbs.
Rates of Fire- Max Rate of Fire 30 rounds per minute for 4
minutes, Sustained Rate of Fire 20 rounds per minute. Maximum
Effective Range 3500m.
81 mm mortars specs - . . ANSWER ✓✓ weight with SL-3
Complete 95.5 lbs. Maximum rate of fire 30 rounds per minute
for 2 minutes, Sustained rate of fire 15 rounds per minute.
Maximum Effective Range 5700m.
Advantages/Disadvantages of Night attack - . . ANSWER ✓✓
ADAVANTAGES OF LIMITED VISIBILITY OPERATIONS
Darkness can conceal the movement of large forces Physical
and psychological factors favor the attacker (shock,
disorientation, and isolation are easier to achieve) Increase the
element of surprise Defender cannot deploy their least engaged
unit (or reserve) as quickly as during the day Compensate for
inferior combat power Avoid heavy losses
DISADVANTAGES
Command and control are more difficult Terrain is more difficult
to traverse The attacker loses momentum because they attack at
