Silent Auditorium - Halo Infinite Guide - IGN (2024)

In IGN's Halo Infinite walkthrough of Silent Auditorium, you'll find strategies for completing the mission on Legendary, the Silent Auditorium Skull, boss fight guide and more. This is the final main mission in Halo Infinite.

There is one skull to find in this mission. It's especially challenging as you'll need to complete the entire mission without killing a single Sentinel. If you do, you can access a secret room just before the elevator that leads to the last boss fight.

Locate the Silent Auditorium

You've made it to the final main mission in Halo Infinite, and the Banished aren't pulling any punches. After departing from the Pelican, Chief is thrown right into it in a large battle arena filled with Banished guarding the entrance to this Forerunner structure.

Here, there's a White elite on the left that can go invisible, and a gold Elite in the back. There are plenty of Grunts and Jackals too, as well as Brutes closely guarding the door in the very back of the room.

Fortunately, we were dropped off at a pretty advantageous location. You can use the hexes on the right as cover, and you can peek out to get some shots in when you're at full health. You can also hide in the back right corner when things get tough.

In the back left of this room, a Grunt will operate the turret, and it can be a real pain. If you kept a long-range weapon like the Battle Rifle or Shock Rifle, you should be able to kill the turret operator before they do too much damage. If not, you can grapple from cover spot to cover spot with your Grappleshot after the Elites have already been taken out.

On the left side of the room, you can also find a Heatwave and a Stalker Rifle if you run out of ammo. From here, you can see another turret on the right, that you can hopefully take out with the Stalker Rifle, or a weapon you were already carrying.

After it's killed, the Gold Elite will drop a Ravager, which will be a big help for the rest of this room. There are Brutes and Berserkers further back in the room, including Brutes hiding up high behind cover with shotguns. Here, you can take your time, and hang out at the back of the room as long as you need, as many of the Jackals and Grunts will come to you.

When you feel safe proceeding, you can use the Ravager to take out the Brutes, hiding behind the hexes for cover when needed. When the room is clear, activate the terminal. There will be plenty of good weapons lying around both from enemies you've defeated, and at weapon racks, so restock before moving on.

When ready, head through the door you opened and turn right. An Elite and Brute will show up, feel free to retreat back into the hallway. You can peek around the corner to take out the Elite and the Brute.

There's a Sentinel Beam and Stalker Rifle you can grab from this room before leaving. Grab the power seed at the back of the room and plug it in to move on. You'll see the Hunters down in the room below outside of this window. Keep following the path and the Cortana holograms through the building until you reach them.

Legendary Strategy Tip: You'll come across a room where you can overlook two Hunters waiting for you. "Why do the designers hate Legendary players?" you may ask, because we're asking the same thing. This room is extremely difficult on Legendary. Our advice is to run around the room grabbing a refresh of grenades, a Ravager or Skewer, and a Disruptor, then hold up in the stack of crates to the left of the entry way in the corner of the room. Throw down the Drop Shield and dish as much ammo into the two Hunters as you can. You can drop down to the lower layer of crates even more in the corner if you find that the Hunters' bullets are ricocheting of the wall too much. If you run out of ammo before killing both hunters, use the Grappleshot to leave the corner quickly and find ammo in the room. Return to the corner and continue the fight until both Hunters are down.

There are also bulldog shotguns in this room. You can restock in here before moving on. Unlock the door when you're ready to proceed.

As you head down the hallway, you will come to a path where you can turn left down one hallway, or right down another. Head to the right to reach an armory you can unlock containing Cindershots, Heatwaves, and Sentinel Beams. These are great for taking out the Sentinels coming up in these missions, but if you're going for the Skull, remember you don't want to take any of the Sentinels out.

When you're stocked up, return to the path and head down the longer hallway forward. After the cutscene that is triggered in this room, turn right. You'll come to a room with a bunch of Grunts you can take out from the hallway. Once you reach the walls with the weapon racks, restock and peek around the corner to take out some Brutes.

In this area, there is an Elite in the back, as well as multiple Grunts and Jackals patrolling the area with the Elite. Use this cover as long as you can, using the Shock Rifle to take out who you see. There's an armored Elite in the back of the room who will be tough to get to, but you should be able to do some damage with the Shock Rifle from here.

If the armored Elite is still giving you problems, there is a Pulse Carbine on the right weapon rack to help you take out the Elite. As you're trying to take out the Elite, more armored Brutes will come in from the back. You can use your Shock Rifle to take care of them or the Pulse Carbine to break down their shields. When everyone in the room is taken care of, restock and move on.

Up next is a huge open room with a bridge. There are a lot of enemies in this room, so let's get started. First, take care of the Grunts on your side of the bridge. Some Sentinels may try to come at you, so keep a Shock Rifle on hand for that.

From here, hide behind one of the pillars and snipe any enemies you can with your Shock Rifle. Look out for reinforcements that come up the ramps on the left and right side. You should have enough ammo to take care of them. Consistently, new enemies will keep hopping on the turret in the back of the room, quickly take them out when they do. You'll see more Elites even further back, behind the turret. You may be able to get the Elites from here, but not as easily as if you move further up.

There is a weapon rack down the ramp on the right with refills for your Shock Rifle. You can hide behind the weapons rack in the middle of this area containing the Sentinel Beams to take out the Elites. There are also Jet Pack Brutes in the distance that will go down quickly with a pair of Shock Rifle headshots. Watch out for surprise Sentinels to pop up as you reach the fork in the road. When this room is clear, take whatever you want and move on.

Follow the path until you have to activate a light bridge. Then, you can follow the halls until you get to a room with two weapon racks on the right. There's also a grenade launcher in this room facing the door in addition to the two weapon racks, don't miss it.

When the door opens, snipe a Grunt with the Shock Rifle from the hallway. This should draw a Brute out. Take him down too from the safety of the weapon room. You can now move up to behind the two pillars the Grunt was standing between. From here, there are multiple Brutes in sight in the distance, that should be no problem for Chief and his Shock Rifle. In this room, there is a Commando in the middle of the floor if you want it. As you advance, watch out for a Jackal sniper on the left and right.

When you get further into the room, Berserkers will appear. You can head up with your Grappleshot to the safety of the Jackal sniper point to take them out. You should take out the last of the armed Brutes in this room from here too. Advance to the door on the left once everything is taken out.

You'll come to a room with just a couple of Grunts, but a large door will open showing more Brutes, Grunts, and Jackals. Don't be afraid to use the ramp we just came in for cover. Once this room is clear, move through to the left to move on. Those are the final enemies you'll have to face until the boss fight.

You'll enter a door and reunite with our great friend, the Adjutant Resolution. In this area, there are weapon racks with Stalker Rifles. Follow Adjutant to the door on the far right.

You'll come to a room where you have to construct a bridge. Construct it and turn left... unless you're going for the Silent Auditorium skull!

Then, head toward the lift and activate it. After the ride, grab the Weapon from the terminal to trigger a cutscene.

After the cutscene, head up the ramp and through the hallway. Once you enter the arena, grab any ammo or new weapons you may need or want from the racks on the second level of the room. When you're ready to finish this fight, access the terminal in the middle of the room.

Harbinger Boss Fight Guide

This boss guide has been written based on a Legendary Difficulty playthrough. It is still applicable to all difficulties, though Easy and Normal players can use a wider variety of weapons and strategies in this fight. Have a different strategy? Let us know how you took down this boss in the comments.

The final fight with the Harbinger is tough. It's split into three distinct rounds, each beginning with Banished footsoldiers followed by attacks from the Harbinger. You must complete both halves of each round to reach the next guaranteed checkpoint. In some instances, you may be able to force a favorable checkpoint in some longer, more difficult engagements with Banished foes.

Recommended Weapons: Sentinel Beam, Your Choice of Weapon
Equipment: Grappleshot for traversal, Grappleshot (or Thruster) and Drop Wall for Harbinger

You should always have a Sentinel Beam on you in this fight. It has excellent range, there's plenty of ammo for it around the room, and it shreds shields.

First Round

Immediately after Harbinger's message, she calls upon the Banished to fight for her. Two sets of Banished groups will emerge from one door on the higher level and another door on the lower level. Their entry point isn't static, though their doors will glow blue before they open. If you can spot a door before it opens, you can wait for it to start opening then toss grenades in to kill a few Banished before they can even set foot in the arena. You'll be able to do this at the beginning of each round. If you don't immediately enter the room, though, you won't be able to pick up their supplies to replenish your own. You'll be okay to do that at this point and there are plenty of weapon racks throughout the room… and plenty more Banished to come.

The first group of Banished is comprised of Jackal Skirmishes, one standard Brute, one shielded Brute, a Skimmer, and a Grunt Mule. This first bunch can be eliminated rather quickly with the Sentinel Beam. Use the Grappleshot to traverse between the upper and lower platform to keep your enemies moving toward you. They can't just jump up like you can (though the Skimmer can fly up) so most will have to run to a ramp to get to you. After a majority of the first wave of enemies have been slain, reinforcements will enter the arena. This includes another shielded Brute, a standard Brute, and a Jackal Skirmisher. Don't let them surprise you.

Use the Grappleshot on walls and higher elevated spots to fling yourself away from the Banished quickly if you need a few seconds of downtime to recharge shields and reload. They'll work their way to you. They move at different speeds too, so this can help you take on a few at a time if you end up feeling overwhelmed with the lack of cover.

Once all Banished are down, it's time to take on the Harbinger. The room will change colors as the golden energy in the middle recedes.

Note: If the Harbinger kills you during this part, you'll have to start this round from the beginning unless you got a checkpoint while fighting the Banished.

Harbinger is difficult. She bounces from place to place, sometimes stopping to lift a hand and summon an orb of energy that'll shoot in her targeted direction. If this is toward you, move. It won't change direction once it's shot, but if you're playing on a harder difficultly and it hits you, this can be a one-hit kill. It'll fry your shields at the very least. This electric orb is deceivingly large too, so get further away than you think you need to be. The orb of energy will remain at its target point for a few seconds before dissipating. Harbinger can also attack by getting close to or behind you and will swipe. The swipe attack and be dodged by jumping backward.

As Harbinger moves, do your best to use pulses of the Sentinel Beam to fry her shields. Once her shields break she'll collapse, giving you a few seconds to do damage. Once she teleports away this round ends.

If you're having trouble getting consistent damage on Harbinger, try moving closer to her using the Grappleshot. Hang out on the higher ledge and swing using higher shots to get greater distance. Alternatively, you can have her move closer to you by holding your ground under one of the many ramps. Close off one side as best you can with a Drop Wall then equip the Grappleshot again in case you need to make a quick escape. Target Harbinger as she approaches, but be aware that she may try to get behind you. If any of her electric orbs make it past your shield it's time to move.

Second Round

Like the first, you'll be dealing with three waves of Banished enemies. The first includes two Jackal Skirmishers and a Skimmer (they'll emerge from a ground-level room), followed not long after by another Skimmer, Jackal Skirmisher, and an Armored Brute equipped with a Ravager. Speed in killing the first group will make taking out the second much easier. Again, stick with the Sentinel Beam. It's basically magic. You can briefly stun the Armored Brute and any nearby Skirmishers with a well-tossed Dynamo (shock) grenade, giving you crucial time to blast away the Armored Brute with that sweet Hardlight beam of energy.

Once a few of your early wave foes are down, a final group of reinforcements emerges including another Skirmished, a Grunt Mule, and a Skimmer with a Shock Rifle.

Keep an eye out for those blue doors where the Banished emerge (you won't have long to find this, unfortunately) and toss any explosives in when you can. Striking even as they leave the door can give you a good advantage. Just remember to keep an eye on the radar and don't let the other Banished sneak up on you.

Like before, the golden light in the middle of the room dissipates after you've defeated all Banished and you'll need to face off against Harbinger. This time, though, she'll send out not one orb of energy at you, but at least two at a time. She'll move faster too. For this round, we recommend using the Thruster if you've got it upgraded to have two charges. When using it, remember to have space to move to the side. Dodging forward at all will likely get you in range of the orb. They're deceptively large. If you're not comfortable with the Thruster or if you don't have it upgraded much, you'll need to use the Grappleshot to evade the fast orbs. Moving between levels and generally more around the map in this round is recommended since she's so focused on tossing more orbs this round.

Don't waste your grenades on Harbinger. She moves too fast and you're probably better off using that time to shoot her with a Sentinel beam. Remember, all you really need to do is break her shields. After she drops, you can approach and melee her a few times before she pops back into the center of the room with most of her health missions. After this round, she's left with only a sliver of health left.

Third Round

The most difficult of the Banished was saved for last. This final group will put you to the test on enemy prioritization and movement. Refill your ammo at weapon racks while you wait for them to spawn (it's a good idea to pick up a weapon with decent range to pair with your Sentinel Beam), and now more than ever, keep an eye out for those blue doors with your grenades at the ready.

You'll find the following enemies emerging together:

• Standard Elite (Pulse Rifle) with two Skirmishers
• Shock Rifle Skimmer, Shock Rifle Elite, Grunt Mule
• Shielded Brute Chieftain with a Gravity Hammer, Elite, and Skimmer
• Your goal should be to eliminate all targets that aren't the Brute Chieftain first. He will run straight for you, continuously, but if you try to fight him while his allies are buzzing around, you'll likely take too much damage and get picked off.

Instead, make sure your second weapon is something with range (keep the Sentinel Beam with you always!) and use the Grappleshot on the second floor to get as much distance as possible between you and that Brute. You might even lap them, but whatever you do, just stay away from the Brute Chieftain.

Like other Gravity Hammer-wielding Brutes, he has a jump and lunge attack that can close a fair bit of distance. Keep turning around to fire once you feel you're far away enough with an eye out always for that Brute. Focus on the Skimmers (and the Grunt Mule!) first followed by the Elite. Try to shoot any remaining large Hardlight Coils when enemies are near. Hardlight coils burst with projectiles, so if enemies are even a little close, they should take a bit of damage. You can also try doing damage to the Brute Chieftain like this, but his shield will recharge.

Tip: If you get enough of the standard Banished enemies cleared and far enough away from the Brute Chieftain and his allies, you can potentially get a checkpoint with most of those pest enemies cleared.

Once you're left with the Chieftain, the best way to fight him is by using the Grappleshot and playing between the ground and upper level (and the even higher platform if you want to). Though the Chieftain can jump, he will not jump up to a higher level and will instead take a ramp. He can jump down, though. Use this to your advantage by pulling him around a section of the map. Be sure to scan the area for any weapons that can help you take him down faster (like maybe the Ravager or anything that can deal shock damage). Again, Harbinger isn't really impacted by grenades unless you get lucky and stick her with one, so use them against this guy instead.

With all the Banished down it's time to finish off the Harbinger. Thankfully you'll get a checkpoint, so you won't need to battle all those Banished again.

Harbinger will send out a flurry of orbs if she gets the chance and once again moves quickly. The easiest way to beat Harbinger at this point, we found, was by taking shelter under a ramp rather than trying to stressfully dodge her orbs out in the open.

As suggested previously, this means taking refuge under a ramp with one side covered by Drop Wall. It can even be under the ramp a little bit. Make sure you've got plenty of Sentinel Beam ammo too.

From the cover of the ramp, you can shoot Harbinger from a distance and let her throw down as many of the orbs as she wants. If she's far in front of you, those orbs will just impact pillars far away or will hit the walkway part of the ramp you're not using anyway. As soon as she's in closer range, you can lay into her with your weapons. You can move out and to the side of your makeshift cover too if needed. Don't forget, you can use the Grappleshot to pull other weapons and ammo to you.

As soon as you break Harbinger's shield, the long fight is over. Congratulations on beating Halo Infinite's campaign!

The fight isn't over if you haven't completed all the side activities, though. If you need a little help with that, consider checking out these pages next:

• Ending and Post Game
• Legendary Ending Differences
• Mjolnir Armor Locations
• Spartan Core Locations
• Forerunner Artifact Locations
• Audio Log Locations
• Zeta Halo