Halo Infinite Campaign Mission 15: Silent Auditorium
Walkthrough and guide for Mission 15: Silent Auditorium in Halo Infinite Campaign Mode. Included are an overview of the mission, objectives, all collectible item locations, bosses, optional Forward Operating Bases (FOB), and a detailed guide on how to clear the level.
Campaign Mode Mission Walkthroughs
Mission 15 Overview
| Objectives |
|
|---|---|
| Collectibles | Hidden Skull (1) |
| Bosses | The Harbinger |
| Forward Operating Bases (FOB) | – |
Collectibles
| Collectible | Location |
|---|---|
| Bandana Skull | Do not take out any Sentinels on this mission and progress through the area until you reach the hallway that leads to the final elevator of the level. Instead of heading to the elevator at the very end, cross the bridge to the right and enter the room. Grappleshot up on the platform ahead to find the Bandana Skull. |
Bosses
| Boss | Recommended Loadout | Location |
|---|---|---|
| The Harbinger | Sentinel Beam (Hard Light), Cindershot (Power) or any weapon, Thruster (Fully Upgraded), Grappleshot (Fully Upgraded), and Drop Wall | The Silent Auditorium |
Silent Auditorium
Locate the Silent Auditorium
| 1 | Clear out the enemies at the entrance ahead. Try to move along the perimeter while avoiding the turret near the middle of the area. Afterwards, follow the mission marker. |
|---|---|
| 2 | Interact with the terminal to unlock the door ahead. |
| 3 | Continue toward the mission marker while taking out the Banished along the way. |
| 4 | You will need a power seed to unlock the next door. Head back to the small corridor to get the power seed and plant it on the terminal. |
| 5 | Go through the door and follow the mission marker again. You will eventually come to a room with two Red Hunters. Pick up a Skewer from one of the weapon racks and attack them from behind. There is also a good supply of fusion coils lying around so use them to whittle away at the Hunters’ massive health. |
| 6 | After taking out the Hunters, use the terminal to unlock the door. |
| 7 | Move through the door and follow the mission marker again. Once you reach a second corridor, the path will split. Ignore the open one with the mission marker first and head through the other path leading to a door. In the next area, you will come to a walkway with a terminal-locked door to the armory down on your right. Grappleshot down and open the door to find several weapons. Restock if you need to. |
| 8 | Head back the to the fork in the corridor and follow the mission marker again. |
| 9 | As you proceed further in the area to a wide room with a large golden door at the end, Sentinels will begin to appear. Do not shoot any of them down at all costs if you want to get the Bandana Skull later (the last hidden skull in the game). |
| 10 | Continue following the mission marker until you reach a terminal. Use it to construct a light break going to the next area. |
| 11 | Cross the bridge and head through the door ahead. |
| 12 | You will eventually reach a long corridor with an elevator that leads to the game’s final boss. Activate the terminal to construct a light bridge across to the corridor’s main walkway. If you did not shoot down any Sentinels throughout the level, cross the bridge and instead of going left to the elevator at the end, continue across the next light bridge to the door ahead (it will be locked if you shot down any Sentinels). Then, Grappleshot up on the platform ahead to find the Bandana Skull. |
| 13 | Leave the room and head for the elevator. |
Retrieve the Weapon
| 1 | Head for the mission marker straight ahead. |
|---|---|
| 2 | Go through the series of doors to reach the Silent Auditorium. |
| 3 | Interact with the terminal and watch the cutscene. |
| 4 | Prepare to battle the Harbinger (final boss). |
Defeat the Harbinger
| 1 | As with War Chief Escharum, the fight against the Harbinger has three phases. Each stage has its own gimmicks that require specific strategies to advance to the next. You can view an in-depth boss guide on how to beat the Harbinger here. |
|---|---|
| 2 | After defeating the Harbinger, watch the ending. |
| ← Mission 14 Walkthrough | All Mission Walkthroughs → |
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