Marine Corps TBS Phase III Exam – Defense, Offense,
Aviation & Fire Support Questions with 100% Verified
Answers | Complete Exam Review
2026–2027
,What is the primary role of combat Impeding enemy mobility, supporting field fortification,
engineers in defensive operations? and providing general engineering tasks that improve
the supported unit's sustainability.
What four battlefield functions do Mobility, countermobility, survivability, and general
engineers perform? engineering.
What does TTLODAC stand for? Target, Trigger, Location, Observer, Delivery
asset/system, Attack guidance, Communication net.
What is the test-ready meaning of Enable friendly forces to move while retaining their
Mobility? mission.
What is the test-ready meaning of Delay, channel, or stop enemy movement so friendly
Countermobility? weapons can destroy the enemy.
What is the test-ready meaning of Protect personnel, weapons, and supplies from
Survivability? acquisition, engagement, weather, and effects.
What is the test-ready meaning of Provide enduring infrastructure and technical support.
General engineering?
What is the sequence of TTLODAC? Target, Trigger, Location, Observer, Delivery
asset/system, Attack guidance, Communication net.
What are the TBS minimum safe-line Fixed fires: 15 degrees; Unfixed fires: 45 degrees.
values for fixed and unfixed fires?
What is the expanded safety rule for 15 degrees or 100 meters, whichever is greater,
range safety? between the limit of fire and the near flank of the
closest friendly unit.
, How should the SBF leader control fires Track the lead trace, increase suppression as required,
as maneuver approaches an MSL? and shift or cease before the friendly element crosses
the applicable MSL.
What three things does success in a Direction, control, and surprise.
night attack depend on?
What are the advantages of limited- 1. Darkness conceals movement of large forces. 2.
visibility operations? Physical and psychological factors favor the attacker. 3.
Increases surprise. 4. Defender cannot deploy reserves
quickly. 5. Compensates for inferior combat power. 6.
Can avoid heavy losses.
What are the disadvantages of limited- 1. Command and control are more difficult. 2. Terrain is
visibility operations? more difficult to traverse. 3. Reduced speed can cost
momentum. 4. Land navigation is more difficult. 5.
Enemy can reposition obstacles without detection. 6.
Attacking units are easier to ambush. 7. Adjusting
indirect fires is more difficult. 8. Signal plan requires
more ammunition. 9. Locating and evacuating
casualties is harder. 10. Risk of fratricide increases. 11.
Communication during consolidation is harder. 12.
Segregating and marking EPWs is harder.
What are the two types of attacks in Illuminated and non-illuminated.
limited visibility?
What is movement to contact? A form of the offense designed to develop the situation
and establish or regain contact while preserving
combat power for decisive engagement.
What four criteria govern formation Speed, security, control, and deployability.
selection and task organization?
What are the three levels of expected Contact remote; contact possible or probable; contact
enemy contact? imminent.
When does a movement to contact When the unit makes decisive contact or transitions to
end? the defense.
Aviation & Fire Support Questions with 100% Verified
Answers | Complete Exam Review
2026–2027
,What is the primary role of combat Impeding enemy mobility, supporting field fortification,
engineers in defensive operations? and providing general engineering tasks that improve
the supported unit's sustainability.
What four battlefield functions do Mobility, countermobility, survivability, and general
engineers perform? engineering.
What does TTLODAC stand for? Target, Trigger, Location, Observer, Delivery
asset/system, Attack guidance, Communication net.
What is the test-ready meaning of Enable friendly forces to move while retaining their
Mobility? mission.
What is the test-ready meaning of Delay, channel, or stop enemy movement so friendly
Countermobility? weapons can destroy the enemy.
What is the test-ready meaning of Protect personnel, weapons, and supplies from
Survivability? acquisition, engagement, weather, and effects.
What is the test-ready meaning of Provide enduring infrastructure and technical support.
General engineering?
What is the sequence of TTLODAC? Target, Trigger, Location, Observer, Delivery
asset/system, Attack guidance, Communication net.
What are the TBS minimum safe-line Fixed fires: 15 degrees; Unfixed fires: 45 degrees.
values for fixed and unfixed fires?
What is the expanded safety rule for 15 degrees or 100 meters, whichever is greater,
range safety? between the limit of fire and the near flank of the
closest friendly unit.
, How should the SBF leader control fires Track the lead trace, increase suppression as required,
as maneuver approaches an MSL? and shift or cease before the friendly element crosses
the applicable MSL.
What three things does success in a Direction, control, and surprise.
night attack depend on?
What are the advantages of limited- 1. Darkness conceals movement of large forces. 2.
visibility operations? Physical and psychological factors favor the attacker. 3.
Increases surprise. 4. Defender cannot deploy reserves
quickly. 5. Compensates for inferior combat power. 6.
Can avoid heavy losses.
What are the disadvantages of limited- 1. Command and control are more difficult. 2. Terrain is
visibility operations? more difficult to traverse. 3. Reduced speed can cost
momentum. 4. Land navigation is more difficult. 5.
Enemy can reposition obstacles without detection. 6.
Attacking units are easier to ambush. 7. Adjusting
indirect fires is more difficult. 8. Signal plan requires
more ammunition. 9. Locating and evacuating
casualties is harder. 10. Risk of fratricide increases. 11.
Communication during consolidation is harder. 12.
Segregating and marking EPWs is harder.
What are the two types of attacks in Illuminated and non-illuminated.
limited visibility?
What is movement to contact? A form of the offense designed to develop the situation
and establish or regain contact while preserving
combat power for decisive engagement.
What four criteria govern formation Speed, security, control, and deployability.
selection and task organization?
What are the three levels of expected Contact remote; contact possible or probable; contact
enemy contact? imminent.
When does a movement to contact When the unit makes decisive contact or transitions to
end? the defense.
