Borderlands 4 Siege and Destroy Walkthrough (BL4 Mission Guide)

The Siege and Destroy mission in Borderlands 4 (BL4) follows directly after Wrath of the Ripper Queen. This quest brings Zane and Moxxi back into the spotlight, delivering a mix of explosive combat, humor, and a bittersweet story moment for Carcadia.

On top of that, completing this quest unlocks Moxxi’s Tip Jar, where you can work toward the Glucose Guardian trophy and pick up two powerful weapons.

Also check: Borderlands 4 Wrath of the Ripper Queen Walkthrough (BL4 Quest Guide)

Here’s your complete BL4 Siege and Destroy walkthrough.

Mission Information

• Recommended Level: 12–15
• Quest Giver: Moxxi
• Location: Moxxi’s Bottoms Up! Bar
• Average Completion Time: 30–40 minutes
• Requirements: Complete Wrath of the Ripper Queen

Also Check: Borderlands 4: How to Save Quent in the Unpaid Tab Mission (BL4 Guide)

Also Check: Borderlands 4 Mob Rules Quest Guide: How to Complete the BL4 Mob Quest Chain

Mission Objectives

1. Meet Zane, follow Zane (Optional: Talk to Moxxi), enter The Pit
2. Follow Zane, meet Sophia, release Sophia, pick up Sophia’s Toy
3. Reach first catapult → Kill Rippers → Place Sophia’s Toy → Clear the area
4. Take Sophia’s Toy → Reach next catapult → Kill Rippers → Place Toy → Clear the area
5. Take Sophia’s Toy → Reach final catapult → Disable shield → Place Toy → Clear the area
6. Reach Carcadia City → Kill Rippers → Reach City Square → Defeat Rippers & Captain Kuzma
7. Reach Leaders Chamber (Optional: Talk to Zane), meet Levaine, collect reward

Step-by-Step Walkthrough

1. Meet Zane & Enter The Pit

After finishing Wrath of the Ripper Queen, speak with Zane. He hints that “Sophia” will be the key to breaking the siege. Before you descend, take the optional step to chat with Moxxi for some lighthearted dialogue.

Enter The Pit with Zane to learn Sophia’s true nature. Spoiler: she isn’t a weapon—she’s a massive Thresher with a devastating digging ability.

2. Release Sophia & Collect Sophia’s Toy

Free Sophia and grab Sophia’s Toy, an item that lets you direct her attacks. Wherever you place the toy, Sophia erupts from the ground, obliterating everything nearby.

3. First Catapult Encounter

Use double jumps and grapple points to reach the first catapult battleground.

• Clear all Rippers before you can interact with the catapult.
• A named enemy, Catapult Master Andersen, awaits. Despite his “Immovable” perk, he’s not too dangerous.
• After clearing the area, climb to the catapult and place Sophia’s Toy. Watch her demolish the machine.

4. Second Catapult Encounter

Grab Sophia’s Toy again and push toward the next catapult.

• Expect another wave of Rippers, including Catapult Master Andersun (yes, another weak mini-boss).
• Look for an Electi Safe in a nearby building for bonus loot.
• Repeat the process: clear enemies, climb, and place Sophia’s Toy to destroy the siege weapon.

5. Final Catapult with Shield

This time, the catapult is shielded. To disable it:

• Follow the quest marker to a nearby building.
• Fight through tougher enemies, including Zerkers and Meatheads.
• Climb platforms and ladders to reach the top and flip the switch.

The shield drops, but the fight intensifies: Invisible Catapult Master Andersen makes a return. He can be tracked by spotting the shimmer around him or targeting the Invisibility Orb nearby. Defeat him, place Sophia’s Toy, and finish the last catapult.

6. Carcadia City & Captain Kuzma

Head into Carcadia City, now overrun by Rippers and Badass variants like ‘Melic Psychos and ‘Ragers.

• Clear your way to the City Square.
• Prepare for a tough boss fight against Captain Kuzma. His barrier forces you to use the Grapple to pull it off before damaging him directly.

Once Kuzma falls, the city begins to stabilize—but not without a tragic cutscene that shifts the tone of the mission.

7. Leaders Chamber & Rewards

After the battle, head to the Leaders Chamber. You can complete the optional objective by talking to Zane for a bit of comic relief. Then meet Levaine, wrap up the quest, and collect your rewards.

Siege and Destroy Rewards

• XP
• Cash
• Eridium
• Assault Rifle
• Gnarly Gnashing Gear ECHO-4 Paintjob

The Siege and Destroy mission in Borderlands 4 is both chaotic and heartfelt, blending classic BL humor with large-scale battles and emotional stakes. Using Sophia to wipe out catapults is as entertaining as it is effective, and the quest sets up even more story-driven content ahead.

If you loved seeing Zane and Moxxi again, this mission delivers exactly the right amount of fan service with plenty of action.