Cyberpunk 2077: Phantom Liberty – How To Get The Blackwall Quickhack And Erebus Weapon

Securing Phantom Liberty’s most devastating endgame gear requires careful mission planning from the very beginning. Unlike standard iconic weapons that can be found through exploration, these Blackwall-infused items are locked behind specific narrative choices that permanently alter your playthrough path.

Your journey toward these powerful artifacts begins during the Firestarter mission where you face a pivotal crossroads. When confronted with the choice between helping Songbird escape or assisting Reed with her capture, you must select the latter option. This decision branches the storyline toward the Cynosure facility, the only location containing these exclusive blueprints.

The subsequent Black Steel in the Hour of Chaos mission involves several preparatory steps: consulting with Mr. Hands and paying his 15,000 credit fee, then visiting Yoko at the Edgenet shop in Kabuki Market. Her cooperation becomes crucial later when you need specialized decryption services.

The Erebus blueprint awaits discovery in the lower levels of the Cynosure facility, specifically in the area where you must hack the Alpha, Bravo, Sierra, and Victor terminals. This section presents significant stealth challenges due to the roaming Cerberus unit, making careful navigation essential.

Upon reaching the mess hall, you’ll identify the maintenance room door – initially inaccessible due to power failure. The solution lies in the nearby storage room where a power grid requires activation. Players with Technical Ability below 10 may struggle with this environmental interaction, potentially requiring temporary stat adjustments through gear or consumables.

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Once you see the mess hall (left), you’ll know you’re close to the maintenance room, which has the Erebus blueprint (right).

Restoring power enables access to the maintenance room where the Erebus blueprint rests. Expert players recommend completing this sequence during periods when the Cerberus patrols distant areas, as the power restoration process creates audible cues that can attract the mechanical hunter.

Progressing deeper into the facility reveals the Experimental Prototyping room, housing the Militech Canto Mk.6 cyberware blueprint. This secured area presents two access methods: hacking the keypad with a passcode or utilizing the instant unlock option available to characters with 15 Technical Ability or higher.

The technical requirement presents a significant build consideration. Netrunners focusing on Intelligence may need to temporarily respec or use gear bonuses to meet this threshold. The alternative hacking method consumes valuable time, increasing your exposure to the patrolling Cerberus unit.

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Hack the keypad to unlock the Experimental Prototyping room (left) so you can grab the Militech Canto Mk.6 blueprint (right).

Inside the prototyping chamber, the Militech Canto Mk.6 blueprint rests conspicuously. Seasoned players advise having a quick escape route planned, as the Cerberus frequently patrols this corridor. The room also contains additional crafting materials valuable for upgrading other cyberware components.

Completing the core shutdown sequence triggers narrative revelations about Songbird’s background and disables the previously threatening Cerberus unit. This presents your only opportunity to collect the essential Behavioral System Component from the robot’s remains.

Critical reminder: Do not advance past the disabled Cerberus without looting this component. Many players report forgetting this crucial step amid the emotional narrative moments, permanently locking them out of both powerful items for that playthrough.

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Don’t forget to grab the item from the Cerberus (left), so it can be turned into a crafting component by Yoko (right).

Following the conclusion of Songbird’s storyline, you’ll receive a cryptic message initiating the This Corrosion mission. Return to Yoko at the Edgenet shop where she decrypts the component into the Cerberus’ Decoded Behavioral System Component. This single item becomes the bottleneck for crafting either the Erebus weapon or Canto Mk.6 cyberware – you cannot create both.

The decryption process requires additional tier 5 components obtainable through vendor purchases or dismantling high-level gear. Plan your economic strategy accordingly, as these materials represent significant investment.

The Erebus represents one of Phantom Liberty’s most devastating firearms, classified as a Power Submachine Gun with extraordinary modifiers. It delivers +100% headshot damage and +25% armor penetration, making it exceptionally effective against heavily armored opponents and cybernetically enhanced enemies.

Beyond its statistical superiority, the Erebus possesses unique Blackwall-infused capabilities. Its projectiles channel dark energy from beyond the Blackwall, creating disruptive effects that prove particularly lethal against low-health targets.

The Erebus can still trigger Blackwall disruption when you hit enemies.

In practical combat scenarios, the Erebus excels in close to medium-range engagements. Its Blackwall disruption effect triggers randomly on hits, creating area denial and crowd control benefits that complement its raw damage output. The weapon synergizes exceptionally well with builds focusing on critical hit chance and damage multipliers.

The Militech Canto Mk.6 operates as a cyberware operating system with four dedicated quickhack slots. Its crown jewel is the exclusive Blackwall Gateway quickhack, representing the pinnacle of netrunning offensive capabilities.

This devastating quickhack demands substantial resources, costing 12 RAM by default. Its propagation mechanics allow it to spread to five additional enemies within a 20-meter radius, delivering lethal damage to cyberware and neural systems while simultaneously disabling mechanical units.

The Blackwall Gateway quickhack unlocked by the Militech Canto Mk.6 might be costly, but it’s great for those who’ve allocated more points into their Intelligence attribute.

The Canto Mk.6 particularly shines in intelligence-focused builds where RAM regeneration and quickhack cost reduction can mitigate its substantial resource demands. When optimized properly, it becomes the most powerful area denial tool available to netrunners.

Choosing between the Erebus weapon and Canto Mk.6 cyberware represents one of Phantom Liberty’s most significant build-defining decisions. The Erebus provides consistent combat performance enhancement for weapon-focused builds, while the Canto Mk.6 transforms netrunning capabilities at the cost of significant RAM investment.

For players specializing in reflexes and body attributes, the Erebus offers unparalleled synergy. Its Blackwall disruption effects complement aggressive playstyles while providing additional crowd control.

The Canto Mk.6 demands careful build planning around intelligence attributes and RAM management cyberware. Without proper optimization, its high cost can cripple your quickhack rotation in extended engagements.

Common pitfalls include forgetting the Cerberus component amid emotional narrative moments, inadequate technical ability for room access, or poor economic planning for tier 5 components. Advanced players recommend farming crafting materials before reaching this decision point.

Your selection should align with your character’s specialization and preferred combat approach. Both items represent endgame power spikes, but their effectiveness depends entirely on build compatibility.

No reproduction without permission：SeeYouSoon Game Club » Cyberpunk 2077: Phantom Liberty – How To Get The Blackwall Quickhack And Erebus Weapon Complete guide to acquiring Phantom Liberty's most powerful Blackwall weapons and cyberware through specific mission choices