Codex

For the manuscript featured in Tom Clancy's Rainbow Six: Rogue Spear, see Codex Argentum.

“ It is my 'open source' journal. All REACT personnel are encouraged to participate in the growth of me/INDEX.
- INDEX
”

The Codex is a feature of Tom Clancy's Rainbow Six Extraction. Entries provide further insight into the lore of the game and are broken down into five categories: REACT, Operators, Protocols, Chimera Ecosystem, and Chimera Threat.

Codex entries are unlocked by achieving development milestones, completing Studies, starting incursions with mutations active, or by completing objectives. The game currently features a total of 105 Codex Entries.

REACT[]

REACT Organization[]

Image	Name	Criteria
	REACT Projects	Default
	The PIONEER	Default
	VR Training Facility	Default
	Containment Protocols	Default
	Operation Outbreak	Complete "Intel Target 1" Study in New York City Region
	REACT Origins	Complete "All Alone" Study in Truth or Consequences Region
	REACT Recruiting	Reach Development Milestone 5
	Scientific Research Protocols	Reach Development Milestone 17
	Airlock Labs	Reach Development Milestone 27

REACT HQ[]

Image	Name	Criteria
	Mira	Reach Development Milestone 4
	Thermite	Reach Development Milestone 7
	INDEX	Reach Development Milestone 10
	Ash	Reach Development Milestone 11

REACT Technology[]

Image	Name	Criteria
	REACT UV Light	Default
	Barricading and Reinforcement	Complete "Hush" Study in New York City Region
	REACT Blade	Complete "Muscle Memory" Study in San Francisco Region
	Research and Development	Reach Development Milestone 5
	REACT Foam	Reach Development Milestone 15
	REACT Laser	Reach Development Milestone 25

Operators[]

Image	Name	Criteria
	Sledge	Default
	Hibana	Default
	Pulse	Default
	Doc	Default
	Ela	Default
	Finka	Default
	Alibi	Default
	Lion	Default
	Vigil	Default
	Rook	Reach Development Milestone 5
	Jäger	Reach Development Milestone 5
	IQ	Reach Development Milestone 5
	Fuze	Reach Development Milestone 10
	Tachanka	Reach Development Milestone 10
	Smoke	Reach Development Milestone 10
	Gridlock	Reach Development Milestone 17
	Capitão	Reach Development Milestone 17
	Nomad	Reach Development Milestone 17
	Zofia	Default
	Echo	Default

Protocols[]

Incursion Protocols[]

Image	Name	Criteria
	Incursions	Default
	Extraction Protocol	Default
	Extraction Pod	Default
	Hot-Zone Emergency	Default
	Airlock	Default
	Containment Doors	Default
	Solo Incursion	Reach Development Milestone 15
	Maelstrom Protocol	Reach Development Milestone 16
	Insertion	Complete all Objectives of an Incursion

Objectives[]

Image	Name	Criteria
	Nest Tracking	Complete a Nest Tracking Objective
	Hunt	Complete a Hunt Objective
	Biopsy	Complete a Biopsy Objective
	Rescue	Complete a Rescue Objective
	No One Left Behind	Complete a No One Left Behind Objective
	MIA Rescue	Complete a MIA Rescue Objective
	Specimen	Complete a Specimen Objective
	Decontamination	Complete a Decontamination Objective
	Sabotage	Complete a Sabotage Objective
	Shutdown	Complete a Shutdown Objective
	Triangulation	Complete a Triangulation Objective
	Serial Scan	Complete a Serial Scan Objective
	Gateway	Kill or assist in killing 3 different Proteans

Chimera Ecosystem[]

Image	Name	Criteria
	Nests
	Sprawl	Complete "Signs of Intelligence" Study in New York City Region
	Aberrations	Complete "High Precision" Study in New York City Region
	Carapace	Reach Development Milestone 24

Parasite Mutations[]

Image	Name	Criteria
	Caustic Sprawl	Complete "Keep It Clean" Study in San Francisco Region
	Cloaked Archaeans	Complete "Trait Adjustment" Study in Alaska Region
	Blinding Spore Carriers	Start an incursion with the Blinding Spore Carrier mutation active
	Sprawl Overflow	Start an incursion with the Sprawl Overflow mutation active
	Armored Nests	Start an incursion with the Armored Nest mutation active
	Chimera Fog	Start an incursion with the Chimera Fog mutation active.
	Spontaneous Sludge	Start an incursion with the Spontaneous Sludge mutation active
	Spontaneous Exploding Mines	Default
	Spontaneous Blinding Mines	Default
	Revived Archæans	Default
	Archæan Havoc	Default
	Immortal Smasher	Default
	High Nest Proliferation	Default
	Elite Intrusion	Default
	Acute Swarm Response	Default

Crisis[]

Image	Name	Criteria
	Crisis 01: Spillover	Unlocked at the conclusion of the Spillover event.
	Crisis 02: Nightmare Fog	Unlocked at the conclusion of the Nightmare Fog event.
	Crisis 03: Eclipse	Unlocked at the conclusion of the Eclipse event.
	Crisis 04: After Effect	Unlocked at the conclusion of the After Effect event.

Chimera Threat[]

Archæans[]

Image	Name	Criteria
	Archaeans	Default
	Grunt	Complete "Grunt Tagging" Study in New York City Region
	Spiker	Complete "Smoke Em" Study in New York City Region
	Breacher	Complete "Lookout" Study in San Francisco Region
	Bloater	Complete "Defused" Study in San Francisco Region
	Sower	Complete "Sower Vulnerability" Study in San Francisco Region
	Blinding Spore	Complete "Dedicated Scanner" Study in San Francisco Region
	Sludge	Complete "Why does it attack?" Study in San Francisco Region
	Rooter	Complete "Rooter Vulnerability" Study in Alaska Region
	Tormentor	Complete "Stun Still" Study in Alaska Region
	Lurker	Complete "Specialized Reveal" Study in Alaska Region
	Smasher	Complete "Smasher Vulnerability" Study in Truth or Consequences Region
	Apex	Complete "Containment" Study in Truth or Consequences Region
	Storm Spiker	Default
	Smoker	Default
	Feral Grunt	Default

Protean[]

Image	Name	Criteria
	Proteans	Complete "Dedicated Scanner 2" Study in Truth or Consequences
	The Singularity GATEWAY	Reach Development Milestone 30
	The Singularity	Reach Development Milestone 30
	The Exit Portal	Reach Development Milestone 30
	The Core of Our Findings	Default

Unlisted[]

The game's official Twitter account has posted several Codex entries that are not listed in-game.

Image	Name	Description
	Soyuz Capsule	Crashed in Truth or Consequences, New Mexico. Established as source of first Parasite outbreak through patient zero: Brooks, Boyd. Data suggests capsule as part of a cancelled lunar program [probability: 75.6%].
	Tidworth	Following events in New Mexico, Dr. Elena María Álvarez (aka Mira) searched for other Chimera strains. Possible match found on mutated cow in Tidworth, UK. Results inconclusive due to tainted sample.
	INDEX	Advanced AI developed by [Redacted – Classified Information company under Dr. Elena María Álvarez' directive. Main functions: Gather, classify, and analyze scientific material.
	REACT	The Rainbow Exogenous Analysis and Containment Team. An independent branch of Rainbow. Budget for team validated upon presentation of substantial evidence of dormant Chimera strains found by Dr. Elena María Álvarez.
	Pioneer	A repurposed freighter and current main base of operations for REACT. Permanent staff includes military and scientific personnel. Assigned head of mission: Eliza Cohen (aka Ash) with clearance level: REACT Nightmare Black.
	Liberty Island	[Warning: Ongoing Development – Data Subject to Change] Chimera parasite outbreak was identified at this location. All REACT personnel were immediately reassigned to assess situation. Emergency Level: Dragon. Containment underway by Jordan Trace.
	Grunt	[Warning: Ongoing Development – Data Subject to Change] The first autonomous motile Chimera identified. Human host not required. Parasite entities grow in embryos (aka Nests) and made of volatile biofilm (aka Sprawl).