The Doomsday Heist is a large-scale, three-act cooperative heist introduced to Grand Theft Auto Online as part of the The Doomsday Heist update. It tasks players with uncovering a plot that threatens San Andreas and working with an unlikely crew, including Lester Crest, billionaire Avon Hertz, and his AI Clifford, to prevent a global catastrophe. Unlike previous heists, The Doomsday Heist is initiated from a player-owned IAA Facility and features a more linear story progression through its three distinct acts. Overview The Doomsday Heist is broken down into three separate acts, each functioning as a self-contained heist with its own series of free-roam Prep Missions, team-based Setup Missions, and an explosive Finale. Prep Missions: These are generally completed in Freemode and involve sourcing equipment or intelligence. They can often be done solo, though having associates can speed up the process. Setup Missions: These are more involved missions requiring a team of 2-4 players and often involve infiltrating locations, escorting targets, or defending assets. Finale Missions: The culmination of each act, these are complex, multi-stage missions that require strong teamwork and execution. Players must complete the acts in order (Act 1, Act 2, then Act 3) the first time through. After completing Act 3, players can replay any act in any order. Starting The Doomsday Heist To begin The Doomsday Heist, players must first purchase a Facility property from Maze Bank Foreclosures. There are nine Facilities available at various locations and price points. Once a Facility is purchased, Lester Crest will contact the player, initiating the storyline and allowing them to start planning Act 1: The Data Breaches from the heist planning room within their Facility. Each act has an initial setup cost that must be paid before prep missions can begin. See The Doomsday Heist Payout Details for more information on costs and potential earnings. Acts Doomsday Heist Act 1: The Data Breaches The first act, "The Data Breaches," sees players recruited by Lester and Avon Hertz to investigate mysterious data breaches targeting sensitive government information. The team must gather intelligence and resources to uncover who is behind the attacks and why. Act 1 Overview Page: Doomsday Heist Act 1: The Data Breaches Prep Missions: Paramedic Equipment Deluxos Akula Setup Missions: Dead Courier Signal Intercepts Server Farm Finale: The Data Breaches Finale: Full Walkthrough") Doomsday Heist Act 2: The Bogdan Problem In "The Bogdan Problem," the focus shifts to a rogue foreign agent named Bogdan, who is operating a heavily armed submarine off the coast of San Andreas and threatening global stability. Players must work with Agent ULP to neutralize Bogdan and his forces. Act 2 Overview Page: Doomsday Heist Act 2: The Bogdan Problem Prep Missions: Keycards ULP Intel Riot Control Van Acquiring Strombergs Acquiring Torpedo ECUs Setup Missions: Avenger Rescue ULP Salvage Hard Drives Submarine Recon Finale: The Bogdan Problem Finale Doomsday Heist Act 3: The Doomsday Scenario The climactic final act, "The Doomsday Scenario," pits players against Avon Hertz and his AI, Clifford, who have revealed their true intentions: to bring about a global cataclysm. The team must infiltrate Avon's heavily fortified mountain base, fight through his advanced defenses, and stop him before he can execute his devastating plan. Act 3 Overview Page: Doomsday Heist Act 3: The Doomsday Scenario Prep Missions: Marked Cash Recon Chernobog Flight Path Test Site Intel Onboard Computer Setup Missions: Rescue Agent 14 Escort ULP Barrage Khanjali Air Defenses Finale: The Doomsday Scenario Finale Payouts and Rewards The Doomsday Heist offers substantial financial rewards, with payouts increasing for each subsequent act and for completing missions on Hard difficulty. Elite Challenges are also available for each finale, providing bonus cash for meeting specific objectives. For a detailed breakdown of setup costs, finale payouts, and Elite Challenge bonuses, see: The Doomsday Heist Payout Details For a comparison with other heists in GTA Online, see: GTA Heist Payouts - Complete List Common Questions (FAQ) Have more questions about The Doomsday Heist? Find answers to common queries regarding requirements, duration, payouts, and more. The Doomsday Heist Common Questions (FAQ)") Trivia The Doomsday Heist was the first heist to require ownership of a specific property (the Facility) to initiate. It introduced several new weaponized vehicles, many of which are used extensively throughout the missions, such as the Deluxo, Akula, Avenger, and TM-02 Khanjali.