Monkey Business

Monkey Business is a main story mission in Grand Theft Auto V given by Federal Investigation Bureau (FIB), involving protagonist Michael De Santa, Franklin Clinton and Trevor Philips.

It's the 48° GTA V mission in chronological order, and it takes place in Blaine County.

Michael, Trevor and Franklin help the FIB save the country.

Gold Medal Objectives (100%)

The following are the Mission Objectives required to obtain the Gold Medal in the mission "Monkey Business":

Stunner: Stun 8 enemies with the Stun Gun.
Headshots: Kill 15 enemies with a headshot.
Accuracy: Finish with a shooting accuracy of at least 70%.
Time: Complete within 13:30.
- Skip all cutscenes.

Note: You can complete each Gold Medal requirement in multiple playthroughs of the mission. You don't need to obtain them all in one single playthrough.

Monkey Business - Mission Details:

Michael, Franklin and Trevor all meet at a dock at Cape Catfish. Haines and Dave show up, asking where everyone is. The job is supposed to be a six-man job but no one told the trio to get a bigger crew. They go to leave but Haines believes they can do it alone but the trio isn't happy with that. reluctantly, Haines and Dave join the crew.

Michael, alongside Haines and Dave, get in scuba suits and take a Dinghy to the Humane Labs and Research facility. Once there, they dive underwater and approach an underwater exhaust shaft to gain entrance to the facility. Michael uses an oxy-hydro cutter to cut down the grill obstructing their entrance. The trio then makes their way through the tunnel and into the facility.

They make their way around the facility, with Michael using a stun gun to stun any scientists or guards in their way. They make their way to the lab which is holding the chemical weapon but a scientist has locked himself in from the inside. Another scientist comes along and Michael shoots him with the stun gun, scaring the other scientist into unlocking the lab.

Michael grabs the nerve agent and the trio start to escape. They need to get out quick as the nerve agent needs to be in a refrigeration unit. An alarm goes off stating the facility has been breached meaning Michael, Haines and Dave now need to fight their way out. They make their way outside and Michael is able to put the nerve agent in a refrigeration unit.

Play then switches to Trevor, who is piloting a Cargobob to come and collect the nerve agent, now inside a container. As they're hooking up the container to the Cargobob, Haines says the job is now too risky as more security agents arrive. Michael disagrees and wants a solution. Michael and Dave hook up the container and escape with Trevor in the Cargobob.

Haines stays behind and shoots himself in the leg. He pretends to be a hero but is detained instead. Trevor takes the Cargobo to the Sandy Shores Airfield and puts the container on a truck that Franklin has driven over. Dave leaves with the truck.

Michael receives a message from Lester saying Madrazo has accepted Michael and Trevor's peace offering of the ancient artifact and Michael is now out of exile. Trevor just needs to give Patricia back. Play switches to Trevor who is driving Patricia back to Madrazo. Trevor is upset as he's grown fond of Patricia. Patricia tells him she will miss him but she has to go home. As Trevor drops Patricia off, he threatens Madrazo, telling him he better treat Patricia right.