Sebastian Diaz

"Communication, brother. We all gotta be in sync."

- Diaz to the Player in "New World".

Specialist Sebastian Diaz is a character in Call of Duty: Black Ops III. A specialist in heavy weapons, Diaz is a member of John Taylor's elite team who goes rogue to uncover the CIA's secrets.

Biography
Sebastian Diaz went to Stanford with a mechanical engineering degree. By the age of 23, he joined the United States Marine Corps before being selected for special forces training. Diaz would join the Cyber Soldier Program that replaced his body with augmentations. In addition, Diaz was given a Direct Neural Interface. Diaz joined the Winslow Accord Special Forces and placed in Commander John Taylor's team.

Ethiopia
"Stay close."

- Diaz's first words in "Black Ops III".

Taylor's team is sent alongside WA agents Jacob Hendricks and the Player to retrieve the Egyptian Prime Minister Said. Once the team regrouped, Diaz was ordered by Taylor to escort The Player, Hendricks, Minister Said and Lieutenant Khalil to extraction. The operation went successful, but with the cost of the Player being critically injured by a grunt.

Teaching the Player
Diaz is seen after the Player's mind is transferred into a simulation. Here, Diaz teaches the Player on the things he can do (e.g. wall running). Diaz starts his friendship with the Player, calling them "brother". When the Player remembers their near-death in Ethiopia, Diaz tells the Player that any references will cause memories to return. The Player and Hendricks did wetwork for five years with Taylor and his team across the world.

Infected by Corvus
Taylor and his team find an abandoned Coalescence Facility, the facility that killed 300,000 people with Nova 6. Taylor is infected by an artificial-intelligence named Corvus, who was a bug in the DNI software who had become a virus. Hall tries to help Taylor, but becomes infected, leading to Maretti and Diaz himself. Corvus influenced them, leading his message to drive them mad. The team later went to the Singapore CIA black site and killed the agents by Denial of reincarnation. Including stealing severs to upload CIA information on the internet.

Exposing Information and Death
"It's okay Hendricks. I can see it... the Frozen Forest."

- Diaz's final words.

Diaz stayed to link CIA information, having full power over the facility. The Player and Hendricks attempt to stop Diaz, but to no avail. Despite the information being linked, the agents defeat Diaz as Hendricks purges with Diaz, killing him. Diaz's death led to Hendricks becoming infected by Corvus by the purge.

Afterward, Diaz is mentioned by the agents thought the manhunt until Hendricks kills Taylor in Egypt. Once the Player has committed suicide in the Coalescence Corporation HQ in Zürich, Diaz is heard within the Frozen Forest alongside Hall.

Reality
The Player in reality died in the Coalescence Hospital by surgery complications. Diaz is still alive, but was not apart of Hendricks' team for wetwork, and later the manhunt on Dylan Stone.

Quotes
"But just so you know... If you ever think about calling Taylor a dick for real... Brother, he's gonna mess you up worse than those robots."

- Diaz in New World.

"Shit... you know how your senses can trigger vivid memories? Make you think of sounds, sights, words from songs. Make you think of stuff you haven' thought of in years. The DNI can make that a lot more visceral - little glitches on your optics, little whispers in your ears... That shit happens."

- Diaz explaining the Player's malfunction in "New World".

"Listen... Can you hear me? You don't have to do this. Their is blood on our hands that we cannot wash away. You know who I am. I'm asking you to turn back. Walk away"

- Diaz to the Player in "Hypocenter".

"Taylor was right - We've gotta show the world the truth."

- Diaz in "Hypocenter".

"I... am willing to die for the truth."

- Diaz in "Hypocenter".