Monkey Business infiltrates Humane Labs through an underwater passage, then extracts a refrigerated container by helicopter. Gold requires eight stun-gun hits on enemies, 15 headshots, 70% accuracy and a finish within 13:30. Plan the non-lethal opening and later firefight as separate opportunities.
Step-by-step walkthrough
-
Swim to the underwater entrance
Meet the crew and FIB agents at Cape Catfish, take the Dinghy along the coast and dive with Michael. Follow the team to the underwater grille. Use the cutter on the marked bars until the opening is clear, then swim through the tunnel into the facility.
Keep the cutting tool aligned with the prompted points instead of moving it over the entire grille. A clean opening saves time for the later combat and flight.
-
Use the stun gun through the laboratory
Follow Dave and Steve through the facility, incapacitating the workers and guards in the path. Count eight successful stuns for Stunner and allow the weapon to recharge between shots. Aim before firing so a miss does not delay the group.
At the locked laboratory, follow the confrontation with the scientists until the door opens. Collect the marked nerve agent. Keep the stun-gun objective in mind before the escape turns into a conventional firefight.
-
Fight to the refrigeration unit
Once the alarm sounds, use cover and work towards 15 headshots against the armed guards. Michael’s special ability helps with accuracy during the corridor fights. Move promptly when each route clears because the recovered material needs refrigeration.
Reach the outdoor unit and place the agent inside as directed. Follow the extraction scene rather than leaving the container behind to search the facility.
-
Lift the container and return Patricia
As Trevor, align the Cargobob’s hook over the container and lift it clear. Fly to Sandy Shores and lower the load onto the marked truck with a controlled descent. Avoid swinging the cargo into the ground or nearby equipment.
After the handover, drive Patricia back to Martin’s ranch. This final journey completes the mission and resolves the current exile. For the timed medal, skip scenes and make the underwater entry and helicopter pickup clean rather than rushing into collisions.
Gold medal checklist
- Stunner: Stun eight enemies with the Stun Gun.
- Headshots: Kill 15 enemies with headshots.
- Accuracy: Finish with at least 70% shooting accuracy.
- Time: Complete within 13:30.
Common questions
When should I work on the stun-gun objective?
Use the quiet laboratory entry for the eight stuns. The later armed escape provides the headshot opportunities.
Why does the mission continue after delivering the container?
Trevor still has to return Patricia to Martin. Complete that drive and the closing scene.
What happens next
Michael and Trevor can return to Los Santos. Hang Ten and Surveying the Score lead into the next phase of the story.
Continue the story: GTA 5 Hang Ten Walkthrough and Four-Minute Gold.