How to Complete FIB Priority File Missions in GTA Online (Full Guide)

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Valencia

Guide Curator at GladiatorBoost

I’m the voice behind the blogs here at GladiatorBoost—diving deep into the gaming world to bring you guides, updates, and stories that actually help (and maybe even entertain a little). Whether it's breaking down the latest boosts or highlighting cool moments in your favorite games, I’m here to make the digital grind a little more fun.

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GTA Online continues to evolve with new content, offering players fresh ways to grind cash, RP, and high-level rewards. One of the most rewarding additions for solo and cooperative players is the FIB Priority File Missions, available exclusively through the Garment Factory property. These multi-layered operations are not only profitable but also introduce cinematic, high-stakes gameplay tied to the criminal underworld of Los Santos.

In this guide, you’ll learn how to unlock and complete the FIB Priority File missions, understand the payout system, and discover the benefits of investing in the Garment Factory—including how to maximize your earnings each week.

🧱 How to Unlock FIB Files in GTA Online

Before diving into these missions, you need to meet a few prerequisites. The FIB Files are tied to a specific property known as the Garment Factory, which longtime fans will recognize as Lester Crest’s iconic hideout from Story Mode.

📍 Requirements:

• Purchase the Garment Factory from Maze Bank Foreclosures.

  • Cost: $2,350,000

• After purchasing, a new app will be installed on your in-game smartphone called Darnell Inc.

• You can also access the same interface from the computer inside the basement of the Garment Factory.

This unlocks the FIB Files feature—an all-new set of missions structured like mini-heists with setup phases and finales.

📂 What Are FIB Files?

FIB Files are a series of four multi-part missions, each with a different storyline and objective. One of these files is designated the Priority File each week, which provides higher payouts and can only be completed once per week.

FIB Files Structure:

• Each File contains:

  • 3 Setup Missions

  • 1 Finale

• You can run all regular files unlimited times, but each has a 5-minute cooldown after completion.

• Priority File pays double but is limited to one completion per week.

💰 FIB File Payouts Breakdown

FIB Files aren’t just for fun—they’re incredibly rewarding, especially if you complete bonus objectives.

📝 Pro Tip: To make the most of your time, prioritize the weekly Priority File and ensure you complete the bonus challenges—these often involve actions like remaining undetected, completing within time limits, or using specific tools.

🚀 How to Start and Complete FIB File Missions

Once you’ve accessed the Darnell Inc. app or used the basement computer, you can choose which FIB File to pursue. Each mission unfolds in a structure similar to classic heists:

🔧 Step 1: Setup Missions

Each file requires you to complete three unique setup missions. These vary by file but typically involve:

• Gathering intel

• Stealing equipment or vehicles

• Taking out key NPCs

They’re action-heavy and diverse, offering a mixture of stealth, combat, and driving challenges.

🧨 Step 2: Final Operation

After finishing the setups, you’ll unlock the final mission. Expect:

• High-level enemy resistance

• Longer mission duration (15–20 minutes)

• Larger cash reward upon successful completion

You can complete these missions solo or with friends, making them one of the most accessible money-making options for single players.

🔁 Weekly Rotation: Understanding the Priority File

Each week, one of the four files becomes the Priority File, paying double the base rate and offering a one-time reward opportunity. You’ll recognize it in-game as it will be labeled “Priority” in the mission list.

To stay up to date, check:

• Weekly Event Bonuses released by Rockstar

• The Darnell Inc. app, which clearly marks the current priority job

This is your best chance for a high payout with minimal investment, especially when paired with weekly bonuses.

💵 Boost Your Earnings with GTA 5 Money Boosts at GladiatorBoost

FIB Files are one of the best ways to earn quick cash in GTA Online, but grinding through missions solo or managing the expensive requirements can be time-consuming. Whether you’re short on time or want to skip the early grind, GladiatorBoost offers GTA 5 Money Boosting services to help you stack your bank account and unlock elite content faster. From direct cash boosts to business unlocks, we have options for every kind of player. Explore GTA 5 Money Boosts here and take your empire to the next level.

🛠️ Bonus Features of the Garment Factory

Aside from access to FIB Files, owning the Garment Factory comes with extra benefits:

• Massive Garage Capacity – Store up to 10 vehicles, including the Terrorbyte

• Passive Income – Generates small income over time

• Exclusive Upgrades for the Terrorbyte, such as:

  • Master Control Terminal (manage all your businesses from one screen)

  • Vehicle workshops and defense modules

It’s a high-cost investment, but one that unlocks new mission types, simplifies business management, and consolidates your empire.

✅ Final Tips for FIB File Success

• Complete all files at least once to unlock the one-time $50,000 bonus per file.

• Check the weekly Priority File early—don’t miss out on the double payout.

• Replay regular files during cooldown windows from other missions to keep income steady.

• Bring snacks and armor—setups and finales often involve heavy combat.

• Pair missions with active GTA$ multipliers to earn even more.