Nightmare Containment Lockdown Protocol Guide: How To Find Extra Loot In Destiny 2’s Leviathan

Beyond the standard completion rewards from the Nightmare Containment event on the Derelict Leviathan lies a hidden loot opportunity that many players overlook. Successfully navigating the lockdown protocol can significantly boost your gear acquisition rate.

The recently introduced Nightmare Containment represents just one aspect of the secrets awaiting discovery aboard Calus’s derelict vessel in Destiny 2. The ship conceals numerous mysteries, including special treasure caches that become accessible exclusively after finishing a Tier 3 Nightmare Containment run. You’ve likely seen the notification stating “lockdown protocols lifted” when the activity concludes—this signal indicates your chance to uncover additional rewards through exploration.

This security protocol involves sealed entryways scattered throughout the Castellum area. When the lockdown deactivates following Containment success, certain previously inaccessible doors (typically two per completion) become operable. Behind these barriers await supplementary treasure containers that provide gear from Destiny 2’s universal loot pool.

This comprehensive guide details the exact procedures for activating the lockdown removal, pinpointing chest positions, and efficiently discovering them post-Nightmare Containment.

The Castellum’s security measures only disengage after you’ve successfully repelled the Nightmare entities infesting the zone, necessitating completion of Nightmare Containment’s third difficulty tier. Importantly, you do not need to defeat the final Tier 3 boss encounter—simply reaching Tier 3 and allowing the countdown to complete suffices. When this occurs, the Nightmare boss flees, initiating a brief two-minute interval before subsequent Containment rounds commence. Throughout this limited timeframe, the lockdown lifts; monitor your display for notifications indicating how many Castellum access points have been activated, revealing how many reward containers you can locate and access before the window closes.

The lockdown protocol message on your screen lets you know when you can go find additional treasure chests.

Numerous secured entry points dot the Castellum landscape, recognizable by their distinctive crimson illumination, though only specific ones participate in the lockdown system. Target doors featuring substantial control mechanisms adjacent to them. Five such switch-equipped doors exist within the Castellum, but merely two will activate following Nightmare Containment conclusion.

The primary challenge with the lockdown mechanism involves determining precisely which doors have unlocked after Nightmare Containment finishes. Two distinct methods exist for identifying operable doors: through visible waypoint markers on your interface, and by detecting recurring auditory signals originating from the switches themselves. Both approaches require relatively close proximity to function effectively.

Monitor for the treasure container symbol and pay attention to the pulsating beeps emitted by the activation mechanisms to discover which Castellum doors have become accessible.

As you approach any door, watch for a treasure chest emblem to materialize above the container; this confirms the door you’ve encountered represents one that can now be opened. While navigating the Castellum, simultaneously attempt to detect the beeping audio, which carries slightly further and can guide your general orientation. However, the most effective technique for locating lockdown doors involves familiarizing yourself with their general positions beforehand for rapid verification.

Look for the treasure chest icon and listen for the beeping of the switches to find which doors have unlocked in the Castellum.

Seasoned players have developed sophisticated approaches to maximize lockdown protocol efficiency. Begin by creating mental maps of all five potential door locations during regular gameplay, allowing instant recognition when the search window opens. The auditory beeping provides directional guidance from approximately 15-20 meters away, while visual markers only appear within 5-10 meters, making audio the superior initial detection method.

Common errors include wasting precious seconds attempting to open incorrect doors or failing to coordinate with fireteam members. Designate specific search zones for each teammate to eliminate redundant checking. Remember that doors remain consistent across multiple completions—if you discover a pattern, you can predict future unlock locations.

Optimize your route by starting from the central area and moving outward in a spiral pattern, prioritizing doors farthest from your starting position first. The two-minute timer provides adequate time for all five door checks if you move efficiently and avoid combat encounters. Equip movement-enhancing abilities or weapons with sprint bonuses to cover ground faster during the limited window.

For maximum loot efficiency, combine this activity with other Leviathan exploration objectives. The hidden chests frequently drop high-stat armor and seasonal weapons, making them valuable for power progression. Consider running multiple Tier 3 completions back-to-back to familiarize yourself with door patterns and develop muscle memory for optimal paths.

No reproduction without permission：SeeYouSoon Game Club » Nightmare Containment Lockdown Protocol Guide: How To Find Extra Loot In Destiny 2’s Leviathan Master Destiny 2's Nightmare Containment lockdown protocol to unlock hidden treasure chests for extra loot rewards