While not mandatory, completing the Disruption setup missions for the Cayo Perico Heist can significantly ease the difficulty of the finale, especially if stealth fails. These missions target El Rubio's supply lines, weakening his guards' weapons, armor, and eliminating hostile air support.
Disruption missions are like the Duggan Shipments from the Diamond Casino Heist separated into a three-part mission. These are not necessary, but completing them will provide an added advantage during the heist finale.
Weapons
In this optional prep mission, you must eliminate El Rubio's arms dealers. There are always three dealers spread all around the map. You only get 10:00 minutes to take them all out.
If you manage to take them all out within 10:00 minutes, the damage done by El Rubio's guard's weapons during the heist is reduced significantly. You only get one chance at this mission every heist. Do not worry, as each dealer eliminated decreases the weapon damage.
This means even if you took two of the three dealers, you should see some considerable difference in the damage dealt during the heist.
We recommend that you either use an Oppressor Mark II or a Buzzard helicopter to reach the targets faster. The homing missiles on these vehicles are useless as they won't lock on to the targets. They will be used solely to go from point A to point B.
This is the reason why you can even use the Sparrow helicopter (if you've bought one) to go to the arms dealers. Another quick tip for all disruption missions is to press the handbrake button once in the air if you use the Oppressor Mark II. Your Oppressor will reach the maximum speed of 130 km/h.
The Oppressor will descend gradually, but you can gain altitude and repeat the same. You will reach the targets much faster by following this strategy. Eliminate all the dealers to weaken the weapon damage of the guards during the heist finale. You do not have to kill the surrounding enemies. Focus fire on the dealers and eliminate them only, and then move on to the next one.
Note that you will also come across heavily armored dealers. An efficient way to eliminate them is using RPG or explosive weapons.
Armor
In this optional prep mission, you need to destroy the armor shipments scheduled to reach Cayo Perico island for El Rubio's security guards. If you manage to destroy them all within 10:00 minutes, the guards will not have any armor during the heist finale.
First, you will be asked to go to a warehouse to find several crates outside the warehouse. Destroy them all using explosive weapons such as a grenade launcher or RPG.
Then you will need to enter the warehouse. You will find more enemies inside the warehouse with more crates.








