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Julien Du Casse serves as the first major Templar boss in Assassin’s Creed Black Flag Resynced, introducing players to a more tactical style of combat than the enemies encountered earlier in the campaign. The encounter takes place during Sequence 3 at the conclusion of A Single Madman, where Edward Kenway boards a heavily guarded Man-o-War before confronting one of the Templar Order’s most influential members.

Unlike ordinary enemies, Du Casse constantly pressures players with ranged attacks, defensive counters, and aggressive repositioning. Charging straight toward him often results in heavy damage, making patience and timing the keys to victory.

This guide explains every mechanic of the fight, including how to prepare, avoid his strongest attacks, deal consistent damage, and defeat Julien Du Casse without unnecessary deaths.

If you’re looking to complete every challenge in the game, GladiatorBoost also offers AC Black Flag Resynced Boosting services for players who want help finishing difficult content.

Where You Fight Julien Du Casse

The boss battle occurs during the main story mission A Single Madman.

After infiltrating a massive Man-o-War, Edward eventually reaches Du Casse aboard the ship. The battlefield is relatively compact but crowded with enemy soldiers, crates, cannons, and explosive barrels that all become important throughout the encounter.

Unlike later bosses that rely on armor or unique mechanics, Julien Du Casse focuses on:

• Long-range pistol attacks
• Defensive swordplay
• Counterattacks
• Constant movement around the deck
• Pressure from supporting guards

Because of this combination, controlling the battlefield is just as important as fighting the boss himself.

Prepare Before Starting the Boss Fight

One advantage this encounter gives players is a brief opportunity to explore part of the ship before Du Casse officially notices Edward.

Use this time wisely.

Instead of rushing toward the boss, quietly eliminate as many nearby guards as possible. Every enemy removed beforehand reduces the pressure you’ll face once combat begins.

Focus on:

• Silent assassinations
• Air assassinations when available
• Isolated enemies first
• Avoiding unnecessary noise

Eventually, Du Casse will spot Edward and initiate the encounter regardless of how many guards remain.

Even removing only a handful of soldiers makes the later stages of the fight significantly more manageable.

Understand Julien Du Casse’s Attack Pattern

Du Casse alternates between ranged attacks and close-quarters combat.

His biggest strength is forcing players to chase him while firing pistols from across the deck.

His primary attacks include:

Pistol Shots

The boss frequently creates distance before aiming his pistols.

You’ll notice an aiming indicator appear shortly before he fires.

If you remain stationary, the bullet deals considerable damage.

Best response

• Dodge sideways before the aim completes.
• Never roll toward the shot.
• Keep moving while closing the distance.

Timing matters more than speed.

A well-timed dodge completely avoids the attack.

Sword Counters

When players attack recklessly, Du Casse often blocks incoming strikes before immediately retaliating.

This is one of the easiest ways to lose health.

Rather than mashing attacks, wait for openings after his own offensive moves.

Constant Repositioning

Whenever you land several hits, Du Casse usually retreats and resumes firing from range.

This pattern repeats throughout the battle.

Instead of chasing recklessly, anticipate where he’ll move next while clearing nearby enemies whenever possible.

Use Enemy Guards to Your Advantage

The surrounding soldiers aren’t always a disadvantage.

They can actually protect Edward.

When Du Casse aims his pistol, grab a nearby enemy and use them as a human shield.

Doing so offers several benefits:

• Blocks incoming bullets
• Eliminates one enemy at the same time
• Creates breathing room
• Conserves health

This strategy becomes especially valuable if multiple guards remain alive during the fight.

As combat continues, the battlefield naturally becomes easier as fewer enemies remain standing.

The Best Way to Damage Julien Du Casse

Many players struggle because they attack too early.

Du Casse excels at punishing aggressive players.

Instead, let him initiate combat.

Wait for His Melee Attack

Allow him to approach.

When the counter indicator appears:

• Dodge at the correct moment.
• Avoid attacking first.
• Watch for his recovery animation.

A successful dodge briefly stuns Julien.

This creates your best opportunity to unleash several sword strikes before he escapes.

Repeating this process consistently deals the safest damage throughout the encounter.

Use Pistols Whenever Possible

Edward’s pistols aren’t your primary damage source, but they’re still useful.

Fire your pistols when:

• Du Casse retreats
• He’s nearly defeated
• You have a clear line of sight
• He’s recovering after a dodge

Every shot contributes toward shortening the battle.

Remember that pistol ammunition is limited.

Loot defeated enemies during the fight whenever it’s safe, as they may drop additional ammunition.

Upgrading Edward’s equipment earlier in the game also increases the number of loaded pistols available before reloading, allowing for stronger burst damage.

Explosive Barrels Can End the Fight Quickly

One of the strongest environmental tools aboard the ship is the collection of explosive barrels scattered across the deck.

These barrels inflict massive damage.

If Du Casse moves close to one:

1. Back away.
2. Wait until he’s beside it.
3. Shoot the barrel with your pistol.

A successful explosion removes a large portion of his health.

Late in the fight, a single explosion may finish the battle instantly.

Although positioning him near a barrel requires patience, the reward is well worth the effort.

Combat Tips for an Easier Victory

Following a few simple habits makes this encounter much smoother.

Keep moving

Standing still almost guarantees you’ll be hit by pistol fire.

Don’t spam attacks

Wait for openings instead of swinging constantly.

Reduce the number of guards

The fewer enemies on deck, the easier it becomes to focus on Du Casse.

Save pistol shots

Avoid wasting ammunition on regular enemies unless absolutely necessary.

Watch your surroundings

Crates, obstacles, and explosive barrels can all become useful tools during the encounter.

Common Mistakes Players Make

Many failed attempts come from the same avoidable errors.

Ignoring the guards

Fighting Du Casse while surrounded quickly becomes overwhelming.

Chasing him constantly

Running directly after the boss often leaves Edward exposed to pistol fire.

Forgetting to dodge

The aiming indicator gives enough warning to avoid nearly every bullet.

Missing environmental damage

Explosive barrels are among the fastest ways to reduce his health.

Attacking into his guard

Patience wins this fight more reliably than aggression.

Recommended Equipment Before the Fight

While the encounter is balanced for early-game progression, a few upgrades make it considerably easier.

Helpful improvements include:

• Increased pistol capacity
• Better sword damage
• Higher health upgrades
• Additional ammunition pouches

Players looking to speed up progression can also choose to Add resources to your AC Black Flag Resynced account, making it easier to unlock equipment upgrades before challenging tougher bosses later in the campaign.

What Happens After Defeating Julien Du Casse?

Defeating Julien Du Casse marks one of Edward Kenway’s first major victories against the Templar Order.

Beyond advancing the story, this encounter prepares players for later boss battles that introduce more advanced mechanics, including stronger defenses, armor phases, and increasingly aggressive enemy behavior.

Mastering dodges, counterattacks, environmental awareness, and resource management here builds skills that remain valuable throughout the rest of Assassin’s Creed Black Flag Resynced.

Players interested in completing every challenge, collectible, and upgrade efficiently can also explore Unlock All for AC Black Flag Resynced, which helps accelerate access to the game’s full range of content.

Frequently Asked Questions

Is Julien Du Casse the first boss in Assassin’s Creed Black Flag Resynced?

Yes. He is generally considered the first major story boss and appears during Sequence 3 in the mission A Single Madman.

Can you defeat Julien Du Casse using only melee attacks?

Yes. Careful dodging and counterattacking are enough to win, although pistols and explosive barrels make the fight much faster.

Do explosive barrels work against Julien Du Casse?

Absolutely. Explosive barrels deal some of the highest damage available during the encounter and can remove a significant portion of his health.

How do you avoid Julien Du Casse’s pistol attacks?

Watch for the aiming indicator above his head and dodge sideways before he fires. You can also grab a nearby enemy to block the bullet with a human shield.

Should you eliminate guards before fighting Julien Du Casse?

Yes. Quietly defeating as many guards as possible before the boss notices Edward makes the encounter much easier by reducing the number of enemies active during combat.

Is this one of the hardest early-game boss fights?

For many players, yes. Julien Du Casse combines ranged attacks, melee counters, and supporting enemies, making him a noticeable step up in difficulty compared to previous encounters.

Final Thoughts

Julien Du Casse is designed to teach players that Assassin’s Creed Black Flag Resynced rewards timing over aggression. Rather than rushing the boss, focus on clearing nearby guards, dodging pistol shots, exploiting openings after his attacks, and taking advantage of the explosive barrels scattered across the deck. With smart positioning and measured counterattacks, you’ll bring down the first major Templar boss and be well prepared for the more demanding encounters that await later in the game.