Demolition Charges is a prep mission featured in Grand Theft Auto Online as part of The Cayo Perico Heist update, and a freeroam mission that can be completed at any time while the The Cayo Perico Heist strand is active. It is one of the five missions in the equipment category that is mandatory for completion.
Description[]
Steal demolition charges that can destroy the reinforced main gate to El Rubio's compound.
Gain access to El Rubio's compound through the main gate and destroy padlocks to access secondary targets.
Pavel reveals that they will need special demolition charges if they wish to breach the main gate of the compound on Cayo Perico, as ordinary explosives wouldn't work, but the only available source is emptied by an American redneck gang, and they will need to do hostile acquisition.
Completing this setup allows players to be able to use demolition charges on the front gate of El Rubio's Compound and on gates of secondary target lock-ups and the Control Tower in the finale. However, this is recommended only for a loud approach, as using the charge to destroy the gate or the smaller charges within proximity of a guard will immediately alert the island.
The player is tasked with going to the location of a small group of O'Neil Brothers, which will become hostile when the player is in sight and must be taken down. After dealing with the enemy group, they quickly find these brothers have no charges, leading Pavel to direct them to the O'Neil Ranch. Upon arriving, players must deal with hostile gang members inside the main farmhouse and find the basement.
Upon finding the basement locked by a shutter door, they must kill one of the arriving gang members to acquire a keycard in order to access the basement, whereupon they will find two knife wielding hostiles and the charges. Once the charges are collected, the player must return them to the Kosatka to complete the mission.