Canon

Joyeuse

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Joyeuse
The Weapon onboard Echo 216. From Halo Infinite campaign level Silent Auditorium.
Render of "The Weapon" from Halo Infinite press kit. Included as part of the magazine kit linked to in this tweet.
Biographical information

Began service:

c. December 11, 2559[1]

Gender:

Female personality

Color(s):

Blue

Political and military information

Affiliation:

United Nations Space Command

Functionality:

Service number:

CTN 0453-0[3]

 

Joyeuse[4][5] (AI Serial Number: CTN 0453-0),[3] also known as Joy or "The Weapon,"[6] is an an artificial intelligence created by, and in the service of, the United Nations Space Command.[7] She was created as an exact copy of the AI Cortana, designed to enter an installation to imitate Cortana and lock her down for retrieval.[8] With the growing threat of the Banished and the Harbinger, the Weapon became the Master Chief's permanent new AI companion, replacing Cortana.[5]

Biography[edit]

Creation[edit]

John-117: "She looks just like her."
Dr. Halsey: "If you say so. I see something else. Something more innocent... from a simpler time."
John-117: "Does she know me?"
Dr. Halsey: "No. She is a blank slate. No memories, no history. Her core is nearly complete. Once it is ready, it will be up to the two of you. The weapon will lock her down. You will retrieve Cortana and bring her back here."
— John-117 and Dr Halsey as they prepare the Weapon for the mission to Installation 07.[1]

In October 2559, Dr. Catherine Halsey dispatched Blue Team on a mission to retrieve three cryo bins and a lockbox from a cryovault beneath the ruins of CASTLE Base. Halsey insisted that what they were retrieving was the key to stopping Cortana, although she warned John-117 that while it would not be easy, it was the only option that they had.[9] The contents of the bins, the remaining cloned brains from Halsey's creation of Cortana, were used by her to create the Weapon for the mission of entering an installation to imitate Cortana and lock her down for retrieval. Halsey created the Weapon to be an exact copy of Cortana with any information that could compromise the Weapon removed by Halsey.[1][8] As she neared her completion, Dr. Halsey introduced the Weapon to the Master Chief, and he was briefed on the plan to capture Cortana and deliver her to the UNSC Infinity for termination. Upon the Weapon's successful deployment, her deletion routine would be executed.[1] While the naming of oneself was a privilege given to all smart AIs, the Weapon was an exception as she was created only for a critical mission that the Weapon wasn't meant to outlast.[10]

Defeating Cortana[edit]

Captain Lasky: "Is the Weapon ready?"
Bridge Officer: "Almost there. We're still at-"
Captain Lasky: "There's no "almost", ensign. We're already there. Initiate deployment. Now."
— Captain Thomas Lasky orders the Weapon's deployment as the Infinity falls to Banished assault.[11]

Shortly after the Infinity arrived at Installation 07, the ship was ambushed by a Banished boarding party force led personally by Atriox.[12][13] As the ship quickly became overrun, Captain Thomas Lasky ordered for the Weapon to be deployed immediately.[11] Meanwhile, the Master Chief stayed behind on the Infinity to hold off the Banished as Lasky was escorted to a dropship.[14] Once on the Halo, the Weapon was able to lock down Cortana in the Silent Auditorium. Cortana was destroyed, though not through means apparent to the Weapon. In reality, Cortana had willingly destroyed herself and damaged the ring in order to prevent Atriox from using it against humanity. She also deactivated the Weapon's deletion routine so that she could accompany John-117 during the struggles that lay ahead,[15] infiltrating the Weapon's matrix, laying down a simple yet elegant deletion override with a little bit of extra thrown in that wouldn't reveal itself until the Weapon and the Master Chief were reunited.[16] As a result, the Weapon was left active within the ring's foundation, believing that the Master Chief was due to come back for her.[2] During her six months in the foundation, the Weapon spent time learning how to breach Zeta Halo's security measures and firewalls so that the Weapon could plunder the data from the broken section of the ring. [17]

Battle for Zeta Halo[edit]

Main article: Battle for Zeta Halo

Joyeuse: "I was created for one purpose and that purpose is no longer needed. My mission is over."
John-117: "We have a new one. The Banished are planning to fire this ring. We need to make sure they don't... Something stopped your deletion. We need to find out why."
Joyeuse: "But this wasn't the mission."
John-117: "The missions change. They always do."
— Joyeuse and John-117 meeting in the foundations of Installation 07.[2]

Six months after the defeat of Cortana, the Master Chief was revived by Echo 216's pilot Fernando Esparza. The Chief returned for the Weapon, whom he was surprised to see was still active. Neither knew how or why her deletion was averted, but she was recovered and accompanied him across the fragment section of the ring, which was now controlled by the Banished following a six-month conflict. Recovering the framework that the Weapon had used to lock down Cortana, the two were able to see echoes of Cortana's life scattered across the ring.[2]

John-117 and the Weapon. From Halo Infinite campaign level Foundation.
The Weapon greets John-117.

The Weapon was key to the Chief’s efforts in disrupting the Banished’s operations across the ring fragments. After they returned to the surface of the ring, the Weapon disconnected Outpost Tremonius and FOB Golf from the Banished's battlenet, returning both bases to UNSC control.[18]