GTA 6 Walkthrough — Complete Story Mode Guide & All Missions

Navigating the campaign of the modern state of Leonida requires a detailed GTA 6 walkthrough to help you coordinate heists, survive police pursuits, and achieve gold medals on all missions. This step-by-step walkthrough guide provides act-by-act instructions, weapon strategies, and character-switching tips for completing the story campaign.

How Do You Complete GTA 6 Story Mode?

The campaign is structured as a series of connected missions that you launch by visiting letter icons on the map. The story focuses on the coordination between Lucia and Jason, requiring players to utilize their individual abilities during missions.

To complete the campaign efficiently, you should focus on upgrading your weapons at Ammu-Nation outlets and modifying your getaway cars at local custom shops. Having bulletproof tires and armor modifications makes the later getaway missions significantly easier.

For a complete listing of every mission in the game, visit our GTA 6 missions list and order guide.

Act-by-Act Walkthrough Strategy

The story mode progresses through three major narrative blocks, each introducing new mechanics, settings, and challenges:

Act 1: Kelly County Outposts (Missions 1–22)

The initial act serves as a tutorial, introducing the shooting, driving, and character-switching mechanics. Lucia begins the act restricted to Kelly County by her ankle monitor.

Your main goal is to complete the first heist, "The Kelly County Depot," which rewards the duo with enough cash to hire a black-market hacker. This technician removes her monitor, allowing you to explore the rest of Leonida.

Act 2: Entering Vice City (Missions 23–48)

With the state map fully open, the duo establishes safehouses in Vice Port and Ocean Beach. Missions focus on planning robberies, stealing getaway vehicles, and clashing with cartel syndicates.

During this act, you'll need to complete three heist prep missions before launching "The Vice Port Bank Run." This heist requires you to hack keypads as Lucia and cover the escape route as Jason.

Act 3: The Keys Syndicate (Missions 49–68)

The final act takes place across the southern Leonida Keys. The duo is recruited for major smuggling runs and must evade federal police units who are tracking their operations.

The final mission, "The Leonard County Vault," requires you to drill into an offshore vault, triggering a massive police chase that determines the ending of the story.

Gold Medal Requirements & Walkthrough Tips

Replaying missions allows you to earn gold medals by completing specific challenges:

This table displays the key parameters for earning gold medals. Replaying missions does not affect your story progress, allowing you to focus on single challenges during each run.

To see details on how the character abilities differ and how to use them, visit our GTA 6 character abilities and switching guide.

How to Prepare for Heists

Heists require preparation tasks that you must complete before starting the main objective:

• Getaway Vehicle: Steal a four-door vehicle, install bulletproof tires, and park it in an isolated location near the heist target.
• Equipment Setup: Purchase body armor, masks, and hacking tools from black-market dealers in Vice Port.
• Crew Selection: Hire hackers, drivers, and shooters from your contact list. Hiring cheap crew members increases your share of the money but increases the difficulty of the heist.

Completing these prep tasks is critical. Choosing poor getaway cars or low-skill crew members often results in failed runs or lost loot during the escape.

For a guide to the optional quests and stranger tasks that unlock skilled crew members, see our GTA 6 side missions guide.

Does the Story Have Multiple Endings?

Yes, the choices you make during the final act shape the ending of the campaign. Your decisions directly affect the trust level between the protagonists, leading to different narrative outcomes.

For a complete explanation of all endings and how to get the secret ending, see our GTA 6 ending guide and analysis.