Doomsday Heist Act 3: The Doomsday Scenario

Your central guide to GTA Online's Doomsday Heist Act 3, "The Doomsday Scenario."

GTA Online's Doomsday Heist Act 3, known as "The Doomsday Scenario," is the conclusion to The Doomsday Heist series (see Act 1 and Act 2). In this action-packed finale, you'll face off against a formidable adversary, navigate treacherous underground facilities, and engage in intense aerial combat to save the world from destruction.

Completing Act 3 is no easy feat, but from infiltrating heavily guarded bases to hacking high-tech servers and mastering the art of the jetpack, our step-by-step instructions, found in the linked articles below, will ensure you're well-prepared for the challenges.

General Preparation Tips

Beyond the specific mission requirements detailed in each of our individual guides, general preparedness is key:

Stock Up: Always ensure you and your team have maximum snacks and body armor. You will need them frequently.
Team Communication: Voice communication with your team members is highly recommended. Coordination is crucial for many objectives.
Vehicle Choice: Vehicles like the Armored Kuruma can significantly ease certain missions. Plan your vehicle access with your team.
Role Assignment: For missions requiring different roles (e.g., pilot, gunner), decide assignments beforehand.
Patience: Some sections are tough and may require multiple attempts. Stay patient and learn from each try.

Doomsday Heist Act 3 Payout

The payout from The Doomsday Heist varies depending on whether you did it in normal or hard mode. You can select which mode you'd like by toggling the option when you start the heist. Full payout details.

Payout (normal): $1,800,000
Payout (hard): $2,250,000

Detailed Mission Walkthroughs

For detailed step-by-step instructions on each specific prep mission, setup mission, and the finale, please use the links below:

Prep Missions

Prep 1(a) – Marked Cash: Guide to acquiring the duffel bag of money needed for Agent 14.
Prep 1(b) – Recon: Learn how to conduct reconnaissance at the Pacific Allied Shipyard.
Prep 2 – Chernobog: Walkthrough for stealing the Chernobog missile launcher.
Prep 3 – Flight Path: Instructions for identifying and eliminating a target to retrieve a briefcase.
Prep 4 – Test Site Intel: How to retrieve intelligence on the Khanjali tank's test site.
Prep 5 – Onboard Computer: Guide to shooting down a prototype Hydra and recovering its onboard computer.

Setup Missions

Setup 1 – Rescue Agent 14: Detailed strategy for the mission to save Agent 14.
Setup 2 – Escort ULP: How to use the Chernobog to protect Agent ULP's helicopter.
Setup 3 – Barrage: Walkthrough for intercepting an ATV and destroying an enemy operation.
Setup 4 – Khanjali: Steps to steal the formidable Khanjali tank.
Setup 5 – Air Defenses: Guide to piloting the Volatol and destroying SAM turrets.