Next up, Pavel will ask you to head over to the O'Neil Brothers' ranch to get the demolition charges. Go there, eliminate the brothers there, and make your way to their house basement.
When you reach the basement door, it will be locked. You need to get the keycard to enter the basement where the demolition charges are.
You will notice some more O'Neil Brothers approaching the ranch in their trucks. Take them out as one of them will have the keycard to unlock the basement door.
Unlock the door and get inside the basement to find two more O'Neil Brothers.
Take them out and get the charges. Return the demolition charges to the submarine to complete this prep mission.
In this mandatory prep mission, you are tasked to obtain El Rubio's safe code from his head of security. The head of security is staying at the Diamond Casino Resort. It's best to stock up on some snacks and heavy armor as you will need it later in the mission.
Make your way to the Casino and go to the penthouse. If you are a VIP member, make your way to the elevator, and you will be taken to the penthouse. If not, then use the roof or sneak your way through the staff stairs.
Pavel would have sent you the picture of what the head of security looks like. Check your phone's messages to see his picture.
Look around the penthouse for a room with two bodyguards outside and take them out silently. Use a suppressed weapon to take a headshot of both of them in quick succession.
This is important as it won't alert anyone inside the room, making it easier for you to search for the target. No one will suspect you of anything, and you can run around the penthouse without any detection.
When you are near the target, he will appear on your mini-map. Take him out and search his body for the safe codes. The target always spawns in a random location in the penthouse.
Exit the penthouse and escape the cops to complete this mandatory prep mission. These safe codes are used to open the main safe during the heist to acquire the Madrazo Files or other targets stored there.
In this mandatory mission, you are tasked to retrieve a fingerprint cloner, used to access the elevator door in El Rubio's office, that will take you to the basement.
First, you need to make your way to the warehouse to find the archives' location where the fingerprint cloner can be found. The warehouse will have a circuit breaker to the left of its main entrance. Use the switch to disable the cameras. This will help you enter without alerting the guards inside. If you do not take the cameras out, the guards will pre-aim and start shooting at you as soon as you enter the warehouse.
Eliminate the guards and hack the laptop to find the location of the archives. If you've played the Diamond Casino heist, then you will be familiar with this hacking style where you must align all the red letters to make up a word.
Once you get the archives' location, you need to make your way there and destroy the cameras by shooting them to avoid any more guards spawning.
Enter the building and look for the cloner device on one of the tables inside the building. The cloner will be indicated on your mini-map whenever you are near the device.
Return the device to the submarine to complete this prep mission successfully.
This is an optional mission where you must retrieve a cutting torch from a construction site. You can get different construction site locations, but with the same mission of finding and retrieving the cutting torch.
The cutting torch is used to cut open the metal grate underwater used to enter the compound via the Drainage Tunnel, and also silently opens chain locks on secondary target storage areas.
The construction site will be heavily guarded. Take out the guards before searching the location for the cutting torch.
There will be several toolboxes at the location with a green arrow hovering over them. Approach them to identify whether they have the torch in them or not.
The cutting torch is blue in color, and you will get a prompt to pick it up. The locations of all the toolboxes are random every time you get this mission.
Deliver the cutting torch to your submarine to complete this optional prep mission.
With the necessary equipment gathered, your next step is securing your firepower. Return to the main Cayo Perico setup missions or move on to the Weapon Loadout.
