Mafia III upgrades tie Lincoln Clay's character progression directly to the criminal empire he builds in New Bordeaux. Instead of earning traditional player experience points, you unlock weapon improvements, health expansions, tactical favors, and vehicle enhancements by increasing the earnings of your three underbosses: Cassandra, Vito Scaletta, and Thomas Burke.

Assigning rackets and entire city districts to your lieutenants raises their financial earn from $0 up to $420,000, unlocking new associate services and passive perks at specific monetary thresholds.

How Underboss Upgrades and Associates Work

Recruiting each lieutenant immediately unlocks their primary associate and baseline service:

  • Cassandra: Unlocks Jackie DuVernay, a mobile Arms Dealer operating from a van who delivers weapons, ammo, and character upgrades directly to Lincoln anywhere in the field.
  • Vito Scaletta: Unlocks Betty Johnson, a Consigliere who visits Lincoln to deposit cash into Sammy's safe on demand, preventing monetary losses upon death.
  • Thomas Burke: Unlocks Hank McGahee, a valet who delivers cars from your fleet directly to your location.

As you assign rackets and run trafficking side missions for their lieutenants (such as Emmanuel Lazare for the Haitians and Nicki Burke for the Irish), their overall revenue grows. Crossing established financial milestones unlocks offensive, defensive, and utility upgrades.

Cassandra: Weapon and Phone Network Upgrades

Cassandra focuses on gun handling, ammunition capacity, distraction items, and telephone disruption through Clifton Jean-Baptiste (Gunsmith) and Jennifer "Clicks" Moran (Switchboard Operator).

Earn RequiredUpgrade / Favor UnlockedAssociate Source
Starting ($0)Mobile Arms Dealer (Buy weapons on the go)Jackie DuVernay
$30,000Screaming Zemi throwable distraction deviceHaitian Mob
$60,000Gunsmith: Improved weapon accuracyClifton Jean-Baptiste
$100,000Operator: Shut down phone lines for 2 to 5 minutesJennifer Moran
$140,000Gunsmith: Increased ammo capacityClifton Jean-Baptiste
$180,000Screaming Zemi: Releases smoke screenHaitian Mob
$220,000Gunsmith: Improved weapon stability and recoil reductionClifton Jean-Baptiste
$270,000Operator: Shut down phone lines for 5 to 10 minutesJennifer Moran
$320,000Screaming Zemi: Exploding variantHaitian Mob
$370,000Gunsmith: Faster reload speedClifton Jean-Baptiste
$420,000Operator: Kill phones and call in combat backupJennifer Moran

(Note: In-game guides and early previews note small variations in phone disruption durations between 2–5 minutes and 5–10 minutes depending on game patch versions.)

Vito Scaletta: Health and Combat Reinforcements

Vito increases Lincoln's physical survivability through Dr. Gianni Bruno (Mob Doctor) and provides tactical combat backup through Bobby "Ducks" Navarro (Hit Squad).

Earn RequiredUpgrade / Favor UnlockedAssociate Source
Starting ($0)Consigliere: Stash cash remotely from anywhereBetty Johnson
$30,000Hit Squad: Call two-man armed backup to your locationBobby Navarro
$60,000Mob Doctor: Adds one additional health bar segmentDr. Gianni Bruno
$100,000Mob Doctor: Increases adrenaline shot carrying capacity by 1Dr. Gianni Bruno
$140,000Consigliere: Reveal enemy locations in area and collect kickbackBetty Johnson
$180,000Mob Doctor: Faster stamina and health recovery speedDr. Gianni Bruno
$220,000Enforcer Squad: Heavily armed backup (three gunmen, including a shotgun)Bobby Navarro
$270,000Mob Doctor: Adds another health bar segmentDr. Gianni Bruno
$320,000Mob Doctor: Increased stamina recovery / Adrenaline restores full healthDr. Gianni Bruno
$370,000High-Impact Squad: Elite four-man hit team with assault riflesBobby Navarro
$420,000Mob Doctor: Maximum health bar segments unlockedDr. Gianni Bruno

Thomas Burke: Police Dispatch and Explosives

Burke manipulates city law enforcement via Fiona Davidson (Police Dispatcher), expands heavy munitions through Terry "The Bishop" Daly (IRA Bomber), and upgrades car theft skills.

Earn RequiredUpgrade / Favor UnlockedAssociate Source
Starting ($0)Vehicle Delivery: Summon fleet rides to your locationHank McGahee
$30,000Clear Blue Zone: Police ignore crimes for 10 to 30 secondsFiona Davidson
$60,000Radar Intel: Nearby police officers marked on radarFiona Davidson
$100,000Explosives Supply: Arms Dealer begins selling explosivesTerry Daly
$140,000Clear Blue Zones: Police ignore crimes for 2 minutesFiona Davidson
$180,000Covert Car Theft: Break into and steal parked cars undetectedIrish Mob
$220,000Clear All Zones: Police ignore all crimes across the city for 2 minutesFiona Davidson
$270,000 / $280,000Additional Explosives: Increased carrying capacity for munitionsTerry Daly
$320,000Clear All Zones: Police ignore all crimes across the city for 5 minutesFiona Davidson
$370,000Occupied Car Theft: Quietly carjack occupied vehicles without detectionIrish Mob
$420,000Police Lockdown: Clear all zones and police ignore Lincoln for 10 minutesFiona Davidson

District Favor Sets and Milestone Unlocks

Outside of passive earn meters, assigning full districts at sitdowns grants Lincoln access to exclusive favor sets. These sets alternate between high-grade weapons and fleet vehicle performance parts.

Once a district is permanently assigned to an underboss, unselected options from that specific favor set become available for purchase through Jackie DuVernay's mobile weapons truck.

  • First District Set (Weapons): Silenced M1N8 (Cassandra) or Silenced Masterson (Vito).
  • Second District Set (Vehicle Performance): Suspension Upgrade (Cassandra), Bodykit Upgrade (Vito), or Drivetrain Upgrade (Burke).
  • Third District Set (Weapons): Deutsche M11B (Cassandra), Scoped Phoenix (Vito), or Clipper .44 (Burke).
  • Fourth District Set (Vehicle Performance): Vehicle Armor Upgrade (Cassandra), Supercharger Upgrade (Vito), or Bulletproof Tires Upgrade (Burke).
  • Fifth District Set (Weapons): Barker 1500 Tactical shotgun (Cassandra), Hawk 4540 Night Vision (Vito), or Stromer .223 (Burke).
  • Sixth District Set (Special Weapons): Hartmann AT-40 (Cassandra), Hartmann 7.62mm (Vito), or Hartmann HLP (Burke).

Vehicle Modifications and Big Rick's Custom Auto

Vehicle upgrades function across two distinct systems: fleet stat boosts and physical customization shops.

Fleet favors unlocked from underbosses—such as superchargers, suspension, and drivetrain tuning—apply stat boosts across your entire Vehicle Delivery valet fleet. However, unlocking these favors does not automatically change the cosmetic exterior of Lincoln's rides.

To apply visual parts and customize personal fleet vehicles, visit any Big Rick's Custom Auto shop (such as the garage in Tickfaw Harbor):

  • Cosmetics & Parts: Big Rick's offers body modifications, custom exhausts, blowers, superchargers, hood scoops, spoilers, rims, interior colors, and decals (including flame and floral patterns).
  • Gearing Ratios: Inside Big Rick's menu, changing the transmission gearing ratio directly balances top speed against acceleration.
  • Racing Unlocks: Completing street and circuit races across New Bordeaux, as well as beating track records, unlocks high-end vehicle cosmetics, exhaust kits, and sports cars like the Marauder.
  • Known Glitch with Bulletproof Tires: The bulletproof tire favor can occasionally bug out after reloading saves, fast traveling, or parking at safehouses. Calling Hank for a fresh vehicle delivery restores the tire protection immediately.

Faster, Baby! DLC: Grow House and Herbalism Upgrades

The Faster, Baby! DLC expansion introduces an herbalism business run with MJ on the outskirts of New Bordeaux. Upgrading the grow house lab dramatically increases product value and passive cash flow.

Upgrading the facility requires hitting cumulative dispensary sales goals ($10,000 for early stages, up to $100,000 for maximum level):

  • Planters: Upgrading from wooden boxes to advanced tables increases batch yields and crop capacity.
  • Lighting & Water Systems: Higher-tier lights ($5,000 to $10,000) and automated irrigation ($4,000 to $7,000) speed up grow cycles.
  • Air Conditioning & Ventilation: Improved climate units ($2,500 to $4,500) prevent crop spoilage and support delicate strains.
  • Fertilizer: Unlocking advanced fertilizer ($10,000) allows nutrient application during the flowering stage, significantly increasing final harvest payouts.
  • Strains & Crossbreeding: Lincoln can collect new wild strains across Sinclair Parish and the Bayou (Indica and Sativa). Combining basic strains with crossbreed seeds in the lab balances growth speed, plant fragility, and final street sale revenue. Reaching maximum herbalism unlocks MJ's Berkley Freerider van for your valet fleet.

District Allocation Strategy: Keeping Underbosses Loyal

Managing your district sitdowns dictates which upgrade trees reach completion. The game features three underbosses and nine total assignable districts.

If an underboss is neglected and passed over repeatedly during sitdowns, their loyalty drops. Extreme neglect causes an underboss to rebel and abandon Lincoln's family, permanently locking Lincoln out of their remaining favors, associate deliveries, and personal perks. Killing Burke leaves you without vehicle delivery; killing Cassandra cuts off weapons van calls; killing Vito removes mobile banking and the hit squad.

  • Balanced Empire (The "We're in This Together" Route): Distribute the six non-starting districts equally, giving two additional districts to Cassandra, two to Vito, and two to Burke. This keeps all three lieutenants alive, keeps their kickbacks stable, and ensures Lincoln earns the majority of high-tier associate upgrades across all three trees.
  • The Specialist Route: If your combat focus requires maximum durability, funnel additional districts to Vito to unlock all five health bars, maximum adrenaline shots, and the four-man High-Impact Hit Squad.
  • Single Playthrough Upgrade Retention Trick: Players experimenting with racket assignments can assign individual rackets to Cassandra to hit early weapon accuracy ($140,000) and stability ($220,000) thresholds, purchase those permanent weapon upgrades from Jackie D's van, and then assign the final district sitdown to Vito or Burke. Upgrades already purchased from the mobile arms dealer remain unlocked even if territory later shifts.

Frequently Asked Questions

Can you get all underboss upgrades in a single playthrough?

No single underboss tree can be pushed to maximum alongside both others reaching $420,000 without deliberate racket manipulation, because there is a finite amount of territory in New Bordeaux. Distributing districts evenly allows you to unlock high-tier abilities for all three, but maxing out the top $420,000 perk for all three lieutenants simultaneously is not possible under standard equal district assignments.

What happens to upgrades if an underboss turns against you?

If an underboss revolts due to territory neglect, Lincoln is forced to hunt them down. Once an underboss is killed, their associated favors and delivery services are permanently lost for the rest of that playthrough.

How do you get free ammunition in Mafia III?

When calling Jackie DuVernay's Arms Dealer van, equip any weapon you already own that is currently low on bullets. Switching to an alternative owned weapon and then switching back immediately refills your ammo reserves to full capacity at zero dollar cost.

How do you unlock vehicle superchargers and engine modifications?

Vehicle superchargers come from two sources: unlocking Vito's Fourth District vehicle favor to apply the boost to your Vehicle Delivery fleet, and beating specific race track records across New Bordeaux to unlock cosmetic blower kits and engine modifications at Big Rick's Custom Auto.