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Minisub

Heists

Minisub

Act II · Jason

Location
Leonida Coast
Protagonists
Jason
Summary
Steal a minisub for the Offshore Port Job approach.

Mission briefing

Minisub is a Heists mission in Act II, playable as Jason and set primarily in Leonida Coast. Steal a minisub for the Offshore Port Job approach.

Inside the Leonida campaign structure, this entry feeds the Heists thread: its contacts, tone, and unlocks matter more to that lane than to unrelated hubs. Finishing it advances Offshore Port Job, with an immediate listed payout of Minisub asset · $6,000.

Tone-wise, Act II missions in this category mix free-roam travel with scripted set-pieces. You should expect driving, on-foot objectives, and at least one surprise that forces a change of plan - a chase, a betrayal, a wanted-level spike, or a dual-character switch.

Scout the pause map before committing to the first yellow pin. Players who learn district exits in Leonida Coast finish cleaner and medal faster than players who only follow the GPS line.

There is one backbone path, but dialogue picks and how loudly you resolve encounters can still change later mission lines and relationship outcomes.

Location guide

Minisub anchors on Leonida Coast. Statewide hunt territory. Use free-roam knowledge of safehouses, chop shops, and mangrove hides - the map is the puzzle.

Before the mission marker goes active, ride the block once in free roam if you can. Note one-way streets, garages, alley motorcycle cuts, and any water ramps. That five-minute scout saves restarts when the alarm hits.

Ambient threats in this district match the Heists fantasy: Private security opens most scores; police, then air units, then multi-agency response follow the alarm timeline.

If you fail and restart, your world position usually snaps to the checkpoint - but ambient wanted level and damaged personal vehicles may persist depending on how the checkpoint was written. Re-armor before re-entering the hot zone.

Objectives

  1. Infiltrate the research marina
  2. Steal the minisub
  3. Evade coastal patrol
  4. Dock at Raul's hidden cove

Recommended loadout

Pack a carbine or assault rifle with extended magazines, a shotgun for doorways and interiors, full body armor, max snacks, and either a high-handling sports car or a motorcycle for alley escapes. Heavy weapons (RPG, MG) belong in the backup vehicle - not always in your hands at mission start - so you are not slow during the opening stealth or social beat. Water loadout: cigarette boat or airboat depending on depth, scuba if the act has unlocked it, and a waterproof backup pistol. Mangrove shortcuts beat open-water duels against Coast Guard.

Opposition & threats

Private security opens most scores; police, then air units, then multi-agency response follow the alarm timeline. Rival crews may attempt mid-escape theft of the take on larger jobs.

Detailed walkthrough

Night dive preferred. Quiet takedowns, then submerged escape along the marked trench.

Mission start & preparation

Mission start places Jason in or near Leonida Coast. Before you touch the first objective marker, open the full map and note police stations, hospitals, garages, and any water routes - Minisub punishes players who improvise without geography.

Read every line of the phone, corkboard, or in-person brief. Rockstar-style Leonida missions often hide soft fail conditions in dialogue: do not kill a contact, do not leave the district, keep a vehicle intact, or protect a VIP. Steal a minisub for the Offshore Port Job approach.

Recommended opening routine: repair or replace your vehicle, buy armor and snacks if a shop is available, set a waypoint to the primary pin, and approach without sideswiping traffic. Early wanted stars almost never help a gold medal run.

Statewide hunt territory. Use free-roam knowledge of safehouses, chop shops, and mangrove hides - the map is the puzzle.

Walkthrough overview

Quick reference walkthrough: Night dive preferred. Quiet takedowns, then submerged escape along the marked trench.

Rewards on completion: Minisub asset · $6,000. Unlocks tied to this mission: Offshore Port Job.

This mission follows a single primary path. How loud you play and which dialogue choices you pick can still alter later banter, relationship flags, and optional contacts.

Walkthrough - Infiltrate the research marina

Objective 1 of 4: Infiltrate the research marina.

This opens Minisub. Travel to the marker without farming wanted stars. Use the approach roads around Leonida Coast that keep you off camera clusters and police stations. If a cutscene plays on arrival, your loadout and vehicle state carry through - arrive prepared.

Stay oriented on the mini-map. Heists missions in Act II often spawn secondary markers (escape vehicles, allies, or optional loot) that are easy to miss under fire.

Statewide hunt territory. Use free-roam knowledge of safehouses, chop shops, and mangrove hides - the map is the puzzle.

Walkthrough - Steal the minisub

Objective 2 of 4: Steal the minisub.

Mid-mission objective in Leonida Coast. Expect the resistance level to rise compared to the previous pin. Clear the immediate area, complete the interaction or combat beat, then reassess ammo and armor before moving on.

Gameplay tip: this is often where Minisub teaches or stresses a mechanic - hacking, trailing, intimidation, boat handling, or protagonist switching. Failures commonly restart at a mid-checkpoint rather than the mission start.

Statewide hunt territory. Use free-roam knowledge of safehouses, chop shops, and mangrove hides - the map is the puzzle.

Walkthrough - Evade coastal patrol

Objective 3 of 4: Evade coastal patrol.

Mid-mission objective in Leonida Coast. Expect the resistance level to rise compared to the previous pin. Clear the immediate area, complete the interaction or combat beat, then reassess ammo and armor before moving on.

Complication tip: plans break here on purpose. Prioritize the objective over perfect cleanup. Civilians and side enemies only matter if a gold criterion calls them out.

Statewide hunt territory. Use free-roam knowledge of safehouses, chop shops, and mangrove hides - the map is the puzzle.

Walkthrough - Dock at Raul's hidden cove

Objective 4 of 4: Dock at Raul's hidden cove.

This is the closing beat. Night dive preferred. Quiet takedowns, then submerged escape along the marked trench. Confirm gold-sensitive conditions before you trigger the end marker: vehicle health, VIP health, wanted level, and any cargo integrity. Once the final cutscene starts, you usually cannot reverse a failed criterion.

Stay oriented on the mini-map. Heists missions in Act II often spawn secondary markers (escape vehicles, allies, or optional loot) that are easy to miss under fire.

Statewide hunt territory. Use free-roam knowledge of safehouses, chop shops, and mangrove hides - the map is the puzzle.

Escape, delivery & cleanup

When the last combat or interaction objective clears, Minisub still requires a clean handoff. Lose heat with tunnels, public garages, mangrove blinds, district borders, or chop shops depending on where Leonida Coast sits in Leonida.

Deliver cargo, intel, cash, or VIPs to the final marker with integrity intact. Damaged vehicles and bleeding allies can fail gold after an otherwise perfect shootout.

Do not skip the debrief cutscene on a first playthrough - Offshore Port Job often appear as map icons or phone contacts immediately afterward. Save manually if you are about to chain heist prep.

Fail conditions & restarts

Common fail states in Minisub include death of a required character, destruction of a mission-critical vehicle, abandoning the mission area for too long, or killing a contact the brief told you to keep alive.

Wanted-level soft fails appear on stealth-leaning medals even when the story continues. If you are hunting gold, treat stars as a fail and checkpoint-restart rather than fighting the whole district.

On dual-character missions, letting the idle partner die in the world while you play the other can still fail the mission - watch both health bars when the UI shows them.

Gold medal strategy

Gold medal checklist for Minisub:

  • 1. Sub health >75%
  • 2. No lethal force on scientists
  • 3. Patrol escaped

Strategy: run a learning attempt to memorize routes, spawn points, and fail triggers. Then replay specifically for medals with cutscenes skipped and a pre-staged loadout.

If a criterion conflicts with another (speed vs stealth, for example), prioritize the harder one on a dedicated replay - many players unlock gold across two focused attempts rather than one perfect run.

After gold pops, you can freely replay for fun or collectibles without worrying about medal state.

Gold medal criteria

  • Sub health >75%
  • No lethal force on scientists
  • Patrol escaped

Tips & tricks

  • Replay from the last checkpoint if a gold criterion fails late - Minisub evaluates medals per attempt, not across combined sessions.
  • Stock snacks, armor, and ammo before accepting the mission; Leonida Coast does not always expose a shop once the script locks the area.
  • Open the pause map during the opening drive and pin a hospital plus a garage. Minisub rarely gives you time to browse mid-chase.
  • Use cover and character switches to bleed pressure - many dual missions let the idle partner recover slightly between switches.
  • Before the score cutscene, mark a secondary escape on the map. Primary routes clog with scripted traffic the moment the alarm hits.
  • Shallow sandbars shred boat health. Stay in marked channels unless you are deliberately cutting into mangroves to break line of sight.
  • If your stolen ride is smoking, swap to Jason's nearby default vehicle - story spawns are usually undamaged and untraceable.
  • Death during the final delivery drive can void payouts on heist-tier missions even after objectives show complete. Survive until the mission-passed banner.

Aftermath

When Minisub completes, the game grants Offshore Port Job. Cash, gear, and contacts listed under Minisub asset · $6,000 apply after the mission-passed state - not merely after the last shootout.

Narrative aftermath depends on cleanliness and any mid-mission choices (spare/kill, approach, loyalty). First-completion flags usually stick even if you replay for gold later.

Suggested follow-up: open the missions catalog and queue other Act II entries in Heists, restock in or near Leonida Coast, and check the phone for new texts from characters this mission advanced.

If this was heist prep, return to the planning board before starting unrelated side content - some assets despawn or require re-acquire if you wait too long in certain designs. Chain prep while the board is hot.

Rewards & unlocks

Rewards
Minisub asset · $6,000
Unlocks
Offshore Port Job

Trivia

  • Minisub adapts classic GTA mission pacing into Leonida's Leonida Coast geography - compare its beat list to similarly themed heists missions from earlier mainline games.
  • This dossier's lead image is sourced from news-vice-harbor.jpg in the site media library.
  • Tracked objectives: 4. Gold criteria: 3. Act placement: Act II.
  • Heist-tier entries typically contribute more to late-game bank balance than story errands, but they also raise federal heat flags used by later missions.
  • Playable cast label: Jason. Primary setting pin: Leonida Coast.
  • Short summary retained for cards and SEO: “Steal a minisub for the Offshore Port Job approach.”

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