Outbreak Perfected Exotic quest, Zero Hour guide - Destiny 2

How to unlock Outbreak Perfected by completing the Zero Hour Exotic mission in Destiny 2.

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Zero Hour returns to Destiny 2, giving players another means of acquiring Outbreak Perfected. This time, this Exotic Pulse Rifle can be crafted with new perks, but it’s not just the gun with changes, the Exotic mission has also received an update. Completing this will be no easy feat, so either come prepared for a tough solo experience or load up with a good fireteam.

Check out our guide on the Outbreak Refined quests so you can unlock the extra Outbreak Perfected perks when crafting the gun. There's also our Vault Puzzle solutions for the Vaulted Obstacles Triumph, which unlocks the Exotic ship and the intrinsic trait boost for this Exotic Pulse Rifle.


How to unlock Outbreak Perfected

Outbreak Perfected is unlocked by completing the Zero Hour Exotic mission. This is similar to the Whisper Exotic mission that rewards Whisper of the Worm. You will have 40 minutes to complete this mission, which has you fighting through the Tower and solving some puzzles. You must collect the quest, Asset Protection, from Ada-1 before you can launch the activity.

Zero Hour guide

Zero Hour can be launched via the Into the Light node on the Director after you have collected Asset Protection from Ada-1 in the Tower. This mission has a 40 minute time limit on Normal and a 20 minute time limit on Legend. Given the high number of Fallen enemies, it's a good idea to use Riskrunner throughout the mission to avoid taking unnecessary Arc damage. Whisper of the Worm still performs well, especially in the first phase of the Siriks fight.

Tower North

The player shoots at various Fallen enemies
Stay near the vent and use the boxes for protection.
Source: Shacknews

As soon as you land, begin running through the doors and head into the vent on the right. When out in the open, stay back and use the left side of the wall for cover. There will be several Captains and Shanks with elemental shields to take down. Clear them all out to lower the shield at the far side of the area.

The player shoots at the Brig in the second area
Clear out the minor enemies and then focus on taking down the Brig.
Source: Shacknews

Go through the hallway into the main area of the Tower where the vaults used to be. Here you will need to dispatch three Heavy Shanks, several Arc-shielded Shanks, a scattering of Sniper Shanks up high, some Vandals, and now a Brig. Use the stairs and the little hut near where you entered as cover.  Across from where you entered is the pathway leading to the Hangar.

Tower Hangar

Two Servitors protecting other Fallen in the Hangar
Take down the Servitors to stop them from shielding all the smaller enemies.
Source: Shacknews

Focus on taking out the snipers on the walkways over the Hangar while another player uses their Super to clear the enemies on the left or Solar elements to pop the Shank shields and cause a cascading explosion. Ensure you take out the Servitors first to stop them from shielding the other enemies. With the upper level clear, shift to killing the enemies down below. This is where you will encounter the first Spider tank. Pop its legs, damage its core, and then move on when it's defeated.

A downed Spider Tank with its core exposed
Clear the enemies, take down the Walker, and then continue up the stairs at the rear.
Source: Shacknews

Run up the stairs behind the Spider tank and clear the group of Vandals and the Captain. Continue through the halls, killing all the enemies in your path. You'll encounter Dregs, Vandals, and another Heavy Shank in the hallways. 

Covert Passage

The player drops down to a plane
On Normal, there is a hidden route beneath the nose of the airship.
Source: Shacknews

You will exit the hallways into a large outdoor area where the floor has been destroyed. Jump across to the walkway with the letter M painted on the wall. Slide under the roller door and drop down the elevator shaft. Crouch through the vent and drop down into the next area where a large plane is sitting on the ground. Go under the nose of the plane to find a tunnel leading to the next section.

A tool chest obscures the correct path below the plane
The tool chest at the far side of the room hides the correct vent.
Source: Shacknews
The player looks down at the six vents
The correct vent is directly below the first opening.
Source: Shacknews

Go under the plane and through the open vent at the end. Drop down into the hallway, jump up through the hole in the wall and immediately turn left. There will be a small vent behind a tool chest. Go through the vent and take your first right. Drop down to the vent directly below you - all other vents lead to death.

Several small platforms protrude from the wall
You can use the small platforms to make your way along the wall and then beneath the overhang.
Source: Shacknews
The catwalk and stairs leading to the path forward
Alternatively, drop down and mid-air jump once you pass the outcropping to reach the catwalk.
Source: Shacknews

Go through the vent to reach the Tower wall where you'll find a several hanging objects. At this point, either work your way down the wall, jumping from platform to platform or you can jump toward the wall and maneuver your way below the outcropping. This jump might be difficult on Hunters and Titans unless you're using a Sword with Eager Edge. There is a switch on the catwalk that extends a platform for other players.

An open vent is visible above the catwalks
Look for the open vent above the catwalks, this is your way back into the Tower.
Source: Shacknews

When you do reach the switch, the next path is directly above you. Climb up to the higher catwalks and look for the open vent. Jump into the vent and follow the path into another elevator shaft. Climb the sides of the shaft to the top and then shoot the grates off the vent. The correct vent will hook to the left, the other is a deadend.

Small platforms line the inside of an elevator shaft
Use the platforms to climb up the shaft to the vents.
Source: Shacknews

At the vertical fan section, you must drop down the sides of the ventilation shaft. The sides will have red lights and provide just enough room to slip by the fans. Stand on the center of the fans to avoid being chopped up, just avoid the new exploder Shanks.

A slanted hallway with thin paths along the walls
Make your way to the back of the room using the thin ledges.
Source: Shacknews

Shoot off the grate and go into the next area which is a slanted and extremely long corridor. You must jump onto the white ledges that run along the wall. Make your way to the far side of the room, jump down the slope and pull the lever to activate more jumping platforms for your team. Go through the vents to enter the next area, Arc Subsystem.

Arc Subsystem

As you drop down into Arc Subsystem, you will be facing a window with a monitor on your left (the monitor shows the layout of the area below you). Go to the right to find a vent to crawl through that will drop you into the maze. To continue, you must activate four levers in the maze which unlock the exit. Two levers are along the left side and two are along the right. They are found by following the main path and then going down a little side alleyway. Split your party left and right to cover more ground. 

One of the switches in Trevor's maze in Zero Hour
Activate all four switches to open the exit.
Source: Shacknews

There is a patrolling robot called Trevor that screams through the area. It will kill you in one hit, so don’t get hit. You can avoid it by hiding in the little side vents that you must crouch to enter or by slipping down one of the side areas where a lever can be found.

Each lever that is pulled will activate electrical fields. These barriers will shock you on contact and will flicker on and off every few seconds. Wait for them to disappear and then continue around the maze to the exit. The exit is directly opposite where you dropped in and can be found by following the exit signs.

Zero Hour maze elevators
Stand on the elevator platforms and activate them to ascend to the walkway above. Jump off the platforms near the top as they will fall back to the bottom.

Passing through the exit door will reveal a room with four elevators. Jump on the platforms and activate them to start a bumpy trip to the top. As the elevator gets close to the walkway, jump onto the catwalk as soon as possible. These elevators are prone to simply dropping all the way back down to the bottom. You can also climb up the beams that line the walls of the shaft.

Once at the top, shoot off the grate and slide down to the next area. Go through the door at the bottom and crouch through the vent found at the top of the stairs.

Vanguard Vault

The cryptarch symbol on the wall revealing the hidden path
Walk into the Cryptarch symbol to reveal the hidden path.
Source: Shacknews

Drop down into the Vanguard Vault and turn around. Look for the Cryptarch symbol next to some pipes on a wall. Approach the symbol or run into it to make the wall swing open, revealing a hidden vault. The correct route through the tiles is hidden in one of the vault rooms, but we've supplied the routes just below.

The route across the titles changes based on the current Threat and whether you're on Normal or Legend. Refer to the following images to find the correct route through. 

Arc Threat tile route

Arc Threat route

Source: Shacknews

Void Threat tile route

Void Threat route

Source: Shacknews

Solar Threat tile route

Solar Threat route

Source: Shacknews

Run across the room to the pedestal at the back and then turn right. Enter this side room and drop down the hole in the floor. Run straight through the next area, up the stairs and around the corner. Before you jump up to the vent, use the Rally Banner spot to fill up on ammo and recharge your Super. When you're ready, jump up, go through the vent, and drop down to the boss fight.

Siriks, of House Salvation – Tower Ruins

The player uses Polaris Lance to deal damage to Siriks
Polaris Lance remains a great Primary ammo choice for dealing damage.
Source: Shacknews

The Tower Ruins is where you will fight the final boss, Siriks, of House Salvation. This fight is straightforward as there are no tricks or mechanics. However, there are three major Servitors that spawn throughout the fight, two Spider tanks, dozens of shielded-Shanks, and several Dregs and Vandals. There is a key difference with this new version too, Siriks will come back in a Brig (as a Brig?) with full health.

The vent will drop you straight into the middle of the room, you should immediately retreat to the rear. Stay as far away from Siriks and the other enemies as you can. Being at the rear means you are out of the range of most enemies in the beginning. Use this moment to land as many Whisper of the Worm shots as you can (if you unlocked the gun, else use other meta weapons!).

Zero Hour Siriks Servitors
Three Servitors will spawn during the fight against Siriks, take them down to ensure they don't make him invulnerable.

After Siriks takes some damage, a major Servitor will spawn, along with a handful of Shanks. Defeating the Servitor will be important, as it can very easily protect Siriks if he gets close. Two more of these major Servitors will enter the fight as Siriks loses more health.

Zero Hour Spider Tanks
Be mindful of the Spider tanks that spawn during the fight.

A shift in the fight will occur once Siriks' health gets low (about 25 percent remaining). He will leave the fight and two Spider tanks will spawn in at the far side of the room. Use whatever you can to take them down, just keep in mind ammo is scarce during the fight and you might need to save some for Brig Siriks. 

Siriks returns in a Brig, a servitor is beside him
When Siriks returns in the Brig, keep moving to avoid its constant bombardment of attacks.
Source: Shacknews

When the Spider tanks are down, Siriks will return in a Brig and will be joined by a Servitor and more enemies. Do your best to knock the Brig's health down, which will cause the front to fall off, allowing you to deal critical hits. Keep moving during this part, as the Brig will bombard you with orbital blasts as well as bombs from the cannon.

Once Siriks is dead, the fight is not over. The mission will only complete once everything is defeated. However, once the Brig is gone, no other enemies join the fight, making it much easier to eke out safe areas and control the room.

Zero Hour guide
Zero Hour will only complete once Siriks and all the enemies in the room are dead, only then will you receive Outbreak Perfected.

Once Siriks and all the enemies are defeated, the Zero Hour mission will complete and you will have unlocked Outbreak Perfected in Destiny 2. For more helpful articles, check out the Shacknews Destiny 2 complete strategy guide!

Guides Editor

Hailing from the land down under, Sam Chandler brings a bit of the southern hemisphere flair to his work. After bouncing round a few universities, securing a bachelor degree, and entering the video game industry, he's found his new family here at Shacknews as a Guides Editor. There's nothing he loves more than crafting a guide that will help someone. If you need help with a guide, or notice something not quite right, you can message him on X: @SamuelChandler 

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