Minisub

Key takeaways

Prepare before the opening marker and treat each objective update as a checkpoint.

• Primary goal Trevor steals a submersible needed for the offshore Merryweather Heist approach.
• Protect mission-critical assets Avoid unnecessary vehicle damage, friendly fire, or abandoning a required target outside the objective radius.
• Use protagonist abilities Use Franklin for precision driving, Michael for controlled gunfights, and Trevor for high-damage combat whenever the mission makes them available.
• Do not rush the final marker Clear pursuit conditions and keep required characters or vehicles together before entering extraction.

Overview

Trevor steals a submersible needed for the offshore Merryweather Heist approach.

Trevor steals a submersible needed for the offshore Merryweather Heist approach.

This Story Mode mission advances the protagonists’ connected storyline. Some neighboring missions can become available simultaneously, so the exact play order may vary.

The walkthrough below separates travel, setup, combat, pursuit, and extraction checkpoints so a failed section can be diagnosed without repeating the same mistake.

Characters in this mission

• Trevor Philips
• Floyd Hebert

Where this sits

Requirements and recommended loadout

Enter with mission-appropriate ammunition, armor, and a vehicle that can survive the opening travel phase.

• RequiredComplete the preceding story unlocks
• RecommendedFull body armor and stocked ammunitionParticularly valuable for missions marked moderate or hard.
• RecommendedAccurate mid-range weaponA rifle or stable automatic weapon handles most outdoor gunfights.
• OptionalClose-range backupUseful inside buildings, alleys, and vehicles.
• RecommendedSave the relevant protagonist abilityUse it for the most difficult chase, driving, or combat checkpoint.

Objectives

1. Travel to the ship carrying the submersible
2. Release the sub by shooting or operating the securing cables
3. Enter the water and board the submersible
4. Pilot it to the recovery point
5. Align with the crane pickup zone
6. Deliver the equipment to the designated storage area

Detailed walkthrough

1. 01

   Travel to the ship carrying the submersible

   Travel to the ship carrying the submersible

   Travel to the ship carrying the submersible. Use the minimap to anticipate turns, preserve the mission vehicle, and prioritize keeping visual contact over risky shortcuts. Once the checkpoint registers, immediately orient toward the next marked objective.

   TipBefore triggering the opening marker, restock armor and ammunition if the mission is expected to involve combat.

   Checkpoint
2. 02

   Release the sub by shooting or operating the securing cables

   Release the sub by shooting or operating the securing cables

   Release the sub by shooting or operating the securing cables. Follow the marked route and wait for the objective prompt to update before leaving the area. Once the checkpoint registers, immediately orient toward the next marked objective.

   Checkpoint
3. 03

   Enter the water and board the submersible

   Enter the water and board the submersible

   Enter the water and board the submersible. Approach from the safest side, clear immediate threats, and wait for the possession or collection confirmation before moving to extraction. Once the checkpoint registers, immediately orient toward the next marked objective.

4. 04

   Pilot it to the recovery point

   Pilot it to the recovery point

   Pilot it to the recovery point. Approach from the safest side, clear immediate threats, and wait for the possession or collection confirmation before moving to extraction. Once the checkpoint registers, immediately orient toward the next marked objective.

   Checkpoint
5. 05

   Align with the crane pickup zone

   Align with the crane pickup zone

   Align with the crane pickup zone. Follow the marked route and wait for the objective prompt to update before leaving the area. Once the checkpoint registers, immediately orient toward the next marked objective.

6. 06

   Deliver the equipment to the designated storage area

   Deliver the equipment to the designated storage area

   Deliver the equipment to the designated storage area. Follow the marked route and wait for the objective prompt to update before leaving the area. Remain in the final marker until the mission-complete transition begins.

   Checkpoint

Difficult sections and useful strategies

Completion checklist

• Travel to the ship carrying the submersibleCheckpoint 1
• Release the sub by shooting or operating the securing cablesCheckpoint 2
• Enter the water and board the submersibleCheckpoint 3
• Pilot it to the recovery pointCheckpoint 4
• Align with the crane pickup zoneCheckpoint 5
• Deliver the equipment to the designated storage areaFinal completion condition

Failure conditions and checkpoints

• A required protagonist, ally, or protected target dies.Restart from the most recent mission checkpoint.
• A mission-critical vehicle is destroyed, abandoned, or leaves the playable route.Use the restart option rather than continuing in an unmarked replacement.
• The target escapes or a timed objective expires.Prioritize route discipline and the primary objective over optional combat.
• The player is wasted or all shared team lives are exhausted.Story Mode reloads the latest checkpoint.

Rewards and aftermath

• Mission completion and progression
  Unlocks the next related story activity, contact, property, or preparation where applicable.

Sources and verification

• GTA Base — GTA V missions list and walkthrough index — verified 2026-08-04 — GTA Base
• GTA V Wiki — Story Missions — verified 2026-08-04 — GTA V Wiki
• Codex model knowledge — detailed step expansion pending editorial gameplay review — Internal editorial