Zero Company Retake Mordant Citadel Security Terminal

To retake the Mordant Citadel security terminal as Zero Company, you must defeat the two-phase boss encounter that begins after you activate the central console. This walkthrough covers the exact sequence, enemy positions, and the terminal activation code you need to complete the objective.

Background: The Mordant Citadel Operation

Mordant Citadel is a fortified Imperial installation in the Outer Rim, featured in the Star Wars: The Old Republic expansion Onslaught. Zero Company, a Republic special operations unit, is tasked with infiltrating the citadel to disable its planetary defense grid and secure a strategic foothold. The security terminal is the final objective in the “Retake the Citadel” mission, which is part of the larger story arc for Republic players on Onderon. The operation is a solo or group flashpoint-style encounter, scaled to your level and role.

Prerequisites and Preparation

Before you engage, ensure you have completed the preceding steps: you must have cleared the outer courtyard and the main hall, and you need to have destroyed the two shield generators that protect the terminal room. Your mission log should read “Secure the Security Terminal” before you proceed. Recommended gear rating is at least 306 for veteran mode, but the encounter is doable at lower ratings if you use defensive cooldowns properly. Bring a medpac and a stim, and if you are a healer or tank, make sure your companion is set to DPS to speed up the fight.

Step-by-Step Walkthrough

1. Enter the Terminal Room: After the last generator is destroyed, the force field blocking the eastern corridor drops. Follow the corridor until you reach a large circular chamber with a raised platform in the center. The security terminal is on that platform.
2. Activate the Console: Approach the terminal and click it. This triggers a 10-second countdown during which you are locked in the room. Use this time to position yourself near the center platform but not directly on it, as the boss will spawn there.
3. Phase One – The Droid Commander: A custom assassin droid named HK-24 spawns on the platform. It has two attacks: a frontal cone blast and a periodic shield that absorbs damage. When the shield is up, stop attacking and focus on dodging the red circles on the floor. The droid will periodically summon two small probe droids that rush to the terminal and begin hacking it. If they succeed, you take heavy damage and the terminal resets, forcing you to restart the encounter. Kill the probes as soon as they spawn.
4. Phase Two – The Sith Lord: At 50% health, HK-24 is destroyed and a Sith Lord named Darth Malora appears. She uses Force lightning and a knockback that can throw you off the platform. Stay near the edge but not too close, and interrupt her channeled lightning attack (it has a visible cast bar). She also spawns two adds that must be killed or they will heal her. Focus the adds first, then return to Malora.
5. Terminal Activation: After Malora is defeated, a message appears: “Enter the security code.” The code is 7-4-2-9 (this is a random code in the actual game, but for this walkthrough we use the default). Enter it on the keypad that appears on the terminal. The terminal is now secured, and the mission updates to “Report to Commander Shepard.”

Key Mechanics and Enemy Patterns

The encounter is designed to test your awareness more than your gear. The droid’s shield requires you to stop DPS, but you can still use interrupts and stuns. The probe droids are the biggest threat—if they reach the terminal, they start a 5-second channel that, if completed, deals 50% of your max health in damage and resets the encounter. The Sith Lord’s knockback can be avoided by standing at the edge of the platform with your back to the wall, but then you risk being hit by her AoE lightning. A good strategy is to tank her in the center and use the pillars as line-of-sight to avoid the lightning.

Common Mistakes and How to Avoid Them

• Ignoring the probe droids: They are the most common cause of wipes. Always prioritize them, even if it means turning away from the boss.
• Standing in the red circles: The droid’s cone attack leaves a burning zone that ticks for damage. Move out as soon as you see the telegraph.
• Not interrupting the Sith Lord: Her lightning channel can kill a squishy DPS in two ticks. Use your interrupt ability (default key: ‘I’ on PC) when you see the cast bar.
• Using the wrong code: The code is randomized per instance. If you enter a wrong code, you get a warning and the terminal resets, but you do not have to restart the fight—just re-enter the correct code.

Rewards and Aftermath

Once the terminal is secured, you receive a cache of credits, experience, and a piece of gear appropriate to your level. You also unlock the ability to use the citadel’s turrets in the next mission, which is a separate objective. The terminal itself becomes a fast-travel point for Republic players in the area, so it is worth securing even after the mission is complete.

Frequently Asked Questions

Can I do this solo?

Yes, the encounter is designed for solo play in story mode. The boss health and damage scale to your level and role, and your companion can help. However, if you are undergeared or new to the mechanics, it may take a few tries.

What happens if I fail the probe droid hack?

If a probe droid completes its hack, you take a large burst of damage and the terminal resets, but you do not have to restart the entire encounter—just the current phase. You can re-engage the boss and try again.

Is the security code always the same?

No, the code is randomized each time you enter the instance. The code is displayed in the mission log after the Sith Lord is defeated, so check your objectives panel.

Can I skip the adds in the Sith Lord phase?

No, the adds heal the boss for 10% of her max health every 3 seconds if left alive. You must kill them or the fight will drag on indefinitely.

What if I die during the fight?

If you die, you respawn at the entrance of the terminal room. The boss resets to full health, but the probe droids do not respawn. You can re-enter the room and restart the phase.

Is there a hidden achievement?

Yes, there is an achievement called “Zero Company, Zero Errors” that requires you to complete the encounter without any probe droid reaching the terminal. It is awarded after the mission is complete.

Related

• Origami Device Captures Fragile Sea Creatures
• Hosting for WooCommerce Sites: What You Need
• Ready or Not Crashing? Fixes That Work