Cyberpunk 2077: Phantom Liberty

This Corrosion Walkthrough: Erebus or Militech Canto Mk.6?

This Corrosion is a Main Quest in Cyberpunk 2077: Phantom Liberty. Read on for a walkthrough of This Corrosion and which is better between Erebus and Militech Canto Mk.6!

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Leave in Silence This Corrosion -

This Corrosion Basic Information


Quest Type Main
Act Act 2
Quest No. 15
Lifepath All

How to Unlock This Corrosion

Quest Unlock Conditions Obtain the Behavioral System Component from the Cerberus and complete Leave in Silence

This Corrosion Rewards

Quest Rewards The full list of Rewards for this Quest is coming soon!

This Corrosion Walkthrough

Quest Objectives

  1. Read the Message from the Unknown Sender
  2. Meet with the Netrunner
  3. Craft Erebus or Militech Canto Mk.6

1. Read the Message from the Unknown Sender

Cyberpunk - mysterious sender

About 24 hours after completing the previous quest, you will receive a text from an unregistered contact, saying that you'll have to meet with a netrunner and hand over the Behavioral System Component that you got from the Cerberus in Somewhat Damaged.

Note: This quest needs both the Behavioral System Component and one of the Iconic crafting specs from the Cynosure lab. Without both items, this quest won't be triggered.

2. Meet with the Netrunner

Cyberpunk - Kabuki Market location

Fast travel to Kabuki Market and head inside the quickhack shop. Talk to Yoko and hand over the component.

Wait for Yoko to finish working to receive the decrypted component—something she will also warn you about.

3. Craft Erebus or Militech Canto Mk.6

Cyberpunk - crafting Erebus

Since there's only one decrypted component, you can only craft one of the Blackwall Iconics (if you picked up their crafting specs during Somewhat Damaged):

  • Erebus - a Power Submachine Gun with rounds infused with dark energy. Each shot has a chance to upload a quickhack that disables the target's cyberware.
  • Militech Canto Mk.6 - comes with the Blackwall Gateway quickhack that cause lethal damage to its target and can spread multiple times.

Craft either item and the quest will be completed.

Should You Craft Erebus or Militech Canto Mk.6?

Erebus is Better Overall

Both are neat Iconics to have but since you can only choose one, we recommend choosing Erebus, especially if you're not using a Netrunner build. Other than being usable in most builds, the quickhack it can upload staggers enemies and gets more powerful the less health the targets have.

The Blackwall Gateway quickhack might sound awesome, but it can be easily outperformed by other quickhacks like Short Circuit and Contagion, due to its slow upload time and high traceability.

The Militech Canto Mk.6 cyberdeck itself only has five quickhack slots (including the built-in Blackwall Gateway) and no bonus effects like most cyberdecks have.

Cyberpunk 2077: Phantom Liberty Related Guides

Cyberpunk 2077 - Quests and Story Walkthrough
Complete Story Walkthrough

Phantom Liberty Main Quests

No. Quest
1 Dog Eat Dog
2 Hole in the Sky
3 Spider and the Fly
4 Lucretia My Reflection
5 The Damned
6 Get It Together
7 You Know My Name
8 Birds With Broken Wings
9 I've Seen That Face Before
10 Firestarter
11 Black Steel in the Hour of Chaos Run This Town The Killing Moon
12 Somewhat Damaged Through Pain to Heaven Unfinished Sympathy
13 Leave in Silence Who Wants to Live Forever From Her to Eternity
14 Four Score and Seven Things Done Changed This Corrosion

Phantom Liberty Walkthrough

All Main Quest Guides

Act 1

No. Quest
1 The Streetkid The Nomad The Corpo-Rat
2 The Rescue
3 The Ripperdoc
4 The Ride
5 The Information The Pickup
6 The Heist

Act 2

No. Quest
1 Love Like Fire
2 Playing For Time
3 Ghost Town Automatic Love
4 Lightning Breaks The Space In Between Down On The Street
5 Life During Wartime Disasterpiece Gimme Danger
6 Double Life Play It Safe
7 M'ap Tann Pèlen Search And Destroy
8 I Walk The Line
9 Transmission Never Fade Away
10 Tapeworm

Act 3

No. Quest
1 Nocturne OP55N1
1.5* Don't Fear the Reaper
Arasaka Panam Rogue
2 Last Caress We Gotta Live Together For Whom The Bell Tolls
3 Totalimmortal Forward To Death Knockin' On Heaven's Door
4 Where Is My Mind? Belly Of The Beast Path of Glory
New Dawn Fades
5 All Along The Watchtower

1.5*: Only available in the Secret Ending

All Quest Types

Quest Types
Main JobMain Quests Side JobSide Quests
GigGigs Suspected Organized Crime ActivityNCPD Hustles


1 Anonymous8 months

As a side note, since the Erebus uploads the blackwall gateway quickhack in low health enemies, it also gives netrunner skill xp (tested).


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