Michael, Trevor and Franklin are at the Murrieta oil fields to meet with FIB agents Steve, Dave and Andreas. Steve and Dave want to steal funds from the IAA which they earned from drug sales, and they want Michael, Trevor and Franklin to do it for them.
The agents leave and Michael comes up with a plan; ‘classic blitz play’ and outlines his plan to the others who don’t seem all that impressed. The three go their separate ways. Michael later makes a call to Franklin and Trevor. The setup missions will then be unlocked: Masks, Boiler Suits, Trash Truck and Tow Truck. A suitable getaway vehicle will also have to be sourced.
At the start of the mission itself, the three meet up at the oilfield. Michael outlines the plan and tells Trevor to go and find somewhere high up to be the lookout.
Enter in the Garbage Truck
After the cutscene, get in the garbage truck.
Go to Cypress Flats
Head to the location marked in Cypress Flats.
Block the road with the garbage truck
Following the short cutscene showing the target inbound, drive a short distance up the road and block the marked location with the garbage truck, making sure to block both lanes of the street.
Hit the armored truck with the Tow Truck
The target armored van will approach, before stopping. At this point, you will be switched to Franklin, who is driving the tow truck. Ram the armored van with the tow truck.
Plant the Sticky Bomb on the back of the armored truck and detonate
Get out of the tow truck and plant a Sticky Bomb onto the back doors of the armored van, get away from the bomb, and detonate. Michael and Trevor will raid the van for what the crew are after.
Hold the police is coming from the street
The cops are now hot and heavy onto the trio. Follow Michael to the holdout position. Take cover and eliminate the incoming waves of cops, switching between each of the characters as necessary, and when prompted to, in order to get the job done.
Hold the police that is coming from behind
When the area immediately in front of Michael and Franklin is largely clear, cops will emerge from the alleyway behind them. Using Michael, go to the alleyway, take cover, and clear out the incoming NOOSE squads.
Kill all the snipers on the front buildings
Three snipers will position themselves on the rooftops of the front buildings in front of Franklin. Switch to Trevor and pick them off. Then switch back to Michael and clear out the incoming cops on the ground.
Destroy the police helicopter
When prompted, switch back to Trevor and using his rocket launcher, take down the incoming police helicopter. With the chopper down, clear out the remaining cops.
Enter in the garbage truck
With the cops thinning out, switch to Franklin and make a dash for the garbage truck, and enter it.
Go to the getaway vehicle
Drive to the getaway vehicle, and exit the truck.
Destroy the garbage truck
Plant a Sticky Bomb on the truck to destroy it (or do so by some other means).
Leave the area
With the truck destroyed, get in the getaway vehicle, and leave the area.
Go to Devin Weston's Mansion
Once Franklin has left the area, he will call Michael. After the phone call ends, you will be switched to Michael. Drive to Devin Weston's Mansion, marked on your map, to complete the mission.
Michael will call Franklin after the mission to inform him of the opportunity discussed with Devin.
Hawk Down - Shoot down the helicopter as Trevor.
Headshots - Kill 12 enemies with a headshot.
Accuracy - Finish with a shooting accuracy of at least 60 percent.