Editing OSTEO combat engineering suit

{{Status|Canon}}
{{Newcontent}}
{{Armor infobox
|name=OSTEO
|image=[[File:HINF OSTEO armor front.png|250px]]
|manufacturer=[[Imbrium Machine Complex]]
|testsite=
|type=*Combat engineering suit
*[[MJOLNIR Powered Assault Armor (GEN3)]]{{C|Compatible}}
|role=
*[[Combat engineer]]s
*Explosive ordnance disposal
*[[HAZMAT]] operations{{Ref/Game|Id=HIAHCoreHazmat|HINF|Armor customization (Halo Infinite)|Armor Hall|Detail=Hazmat - Armor Core Description|Quote=Project: OSTEO combat engineering suits incorporate an array of contingency systems focused on surviving extended operations in extraordinarily harsh working and combat environments.}}{{Ref/Game|Id=HIAHHelmetHazmat|HINF|Armor customization (Halo Infinite)|Armor Hall|Detail=Hazmat - Helmet Description|Quote=Spartan combat engineers work in close cooperation with their Army and Marine cousins in demolition and hazmat missions, in addition to carrying out specialist tasks which require super-human reactions, strength, and situational awarenes.}}
|weight=
|features=Array of contingency systems{{Ref/Reuse|HIAHCoreHazmat}}
}}

The '''OSTEO combat engineering suit''', also known as the '''HAZMAT armor''', is a [[human]] armor system employed by unaugmented personnel as well as [[Spartan Operations]] personnel for [[HAZMAT]] operations.{{Ref/Site|Id=S4Customization|https://www.halowaypoint.com/news/customization-overview-season-4|Site=Halo Waypoint|Section=Halo Infinite|Page= Customization Overview - Season 4|D=19|M=6|Y=2023}} The suit was created as part of '''Project: OSTEO'''.{{Ref/Reuse|HIAHCoreHazmat}}{{Ref/Site|Id=CF142|URL=https://www.halowaypoint.com/news/canon-fodder-system-shocks|Site=Halo Waypoint|Page=Canon Fodder 142: System Shocks|D=30|M=06|Y=2023}}{{Ref/Twitter|Halo|1674794955997601792|Halo|Quote=TECH DATABASE - PROJECT: OSTEO The fruits of Project: OSTEO, this combat engineering suit is built to stand against all manner of threats and dangerous conditions, for use by both Spartans and non-augmented personnel. #FictionFriday|D=02|M=07|Y=2023}}

==Overview==
===Design details===
The OSTEO armor platform incorporates an array of contingency systems focused on surviving extended operations in extraordinarily harsh working and combat environments. It is designed to be used by both [[Spartan]]s and non-augmented personnel in all manner of dangerous conditions.{{Ref/Reuse|S4Customization}} While the Spartans' [[MJOLNIR Powered Assault Armor]] already protects against many things, the OSTEO is more specialized towards the specific role of protecting against natural and artificial environmental hazards, and provides a platform that is not exclusively usable by Spartans. Where MJOLNIR offer protections to a Spartan operating in compromised conditions, OSTEO-derived technologies maximize life maintenance effectiveness for extended periods, providing more optimized solutions for a wider range of suitable operators—including non-augmented military and [[civilian]] personnel.{{Ref/Reuse|CF142}} The OSTEO armor is also hardened against cyberattacks.{{Ref/Site|Id=Twitch|URL=https://www.twitch.tv/videos/1847985516|Site=Twitch|Page=Halo|Detail=Halo Infinite Season 4 Preview (6/16 @ 1pm pt)|Quote=But also is unique because it is hardened against cyberattack. So, it is able to have a higher level of cybersecurity than any other cores or armors, and it's suited for the infection that we have.|Quotee=Sean Baron (at 39:13)|D=16|M=06|Y=2023}}

The OSTEO armor platform—even when utilized by civilians—is outfitted with onboard solutions to interface with various infotech and [[artificial intelligence]] control systems, which have become ubiquitously integrated into [[:Category:26th century|twenty-sixth century]] industrial and environmental infrastructures. These features give OSTEO wearers the agility to deal with both the technological and physical sides of hazardous events that might befall a human colony or installation.{{Ref/Reuse|CF142}} 

The T21-HEX4 hip utility is considered part of the complete OSTEO suit, being included on the relevant shipping manifest, but only [[Imbrium Machine Complex]] knows what it does.{{Ref/Game|Id=HIT21HEX4|HINF|Armor customization (Halo Infinite)|Armor Hall|Detail=T21-HEX4 Utility Description|Quote=It's part of the shipping manifest of a complete OSTEO, but only IMC knows what it does, exactly.}}

===Development history===
In the years after the [[Human-Covenant War]], private industry across several [[human]] [[Human colonies|colonies]] saw rapid development in many fields, with [[Powered exoskeleton|exoskeletal frames]] seeing considerable research and development. Project: OSTEO and its resulting combat engineering suit were among the fruits of these advancements. Primarily developed by [[Imbrium Machine Complex]], the OSTEO armor system is the result of a shared-source initiative to build an armor platform wearable by both supersoldiers and non-augmented humans for everything from construction and exploration to security and combat applications.{{Ref/Reuse|CF142}} Refitted [[MJOLNIR Powered Assault Armor/Mark VI|Mark VI]] helmets called [[Mark VI CBRN]] were used throughout the testing and evaluation of OSTEO.{{Ref/Game|Id=HIMarkVICBRN|HINF|Armor customization (Halo Infinite)|Armor Hall|Detail=Mark VI CBRN - Helmet Description|Quote=Refitted Mark VI helmets were used throughout the testing and evaluation of OSTEO.}} In the wake of the galaxy’s [[Post-Covenant War conflicts|most recent conflicts]], the [[United Nations Space Command]] has expressed interest in projects like OSTEO, modifying industrial-focused designs to be used by Spartans and special forces operatives.{{Ref/Reuse|CF142}} As late as 2560, the OSTEO armor was used by Spartans, having been made compatible with the GEN3 Mjolnir.

===Usage===
OSTEO armor is used by personnel who are sent on missions deep into dying [[Forerunner]] facilities, for hunters operating in and around poisoned water and air, search teams exploring sites scarred by [[:Category:Chemical weapons|chemical]], [[:Category:Biological weapons|biological]], radiological, and [[nuclear weapon]]s used in the Human-Covenant War,{{Ref/Reuse|S4Customization}} as well as those facing pockets of [[Flood]] infestation.{{Ref/Reuse|CF142}} It is also used by Spartan [[combat engineer]]s working in demolition and hazmat missions, in addition to carrying out specialist tasks which require super-human reactions, strength, and situational awareness.{{Ref/Reuse|HIAHHelmetHazmat}}

===Variants===
A list of variants compatible with the OSTEO armor platform:
*[[ASHMAW-class helmet|Ashmaw]] - A variant designed for use on derelict ships and hazardous moons
*[[BURROWLENS-class helmet|Burrowlens]] - A variant for Spartans who are mediators of the larger war machine
*[[FARKAS-class helmet|Farkas]] - A variant for Spartans operating in former Human-Covenant War battlegrounds 
*[[Mark VI CBRN]] - A variant consisting of a refitted [[MJOLNIR Powered Assault Armor/Mark VI|Mark VI]] helmet
*[[NOTUS-class helmet|Notus]] - A variant for usage in highly poisonous, corrupted, and blighted environments
*[[OBERON-class helmet|Oberon]] - A variant designed to compensate for the loss of [[Smart AI|Smart AIs]] 
*[[OGUN-class helmet|Ogun]] - A variant for scavenging critical components from destroyed ships
*[[Project CORSAC]] - A variant for missions without the need of [[Visual Intelligence System, Reconnaissance|visors]]
*[[SERKET-class helmet|Serket]] - A variant with several layers of redundant filters and seals  
*[[SKARBNIK-class helmet|Skarbnik]] - A variant for Spartans infiltrating dying Forerunner structures 
*[[STEELHEART-class helmet|Steelheart]] - A variant to deal with Flood-infected victims
*[[TEMFOR-class helmet|Temfor]] - A variant with many precautions against the Flood 
*[[VOIDSPEAR-class helmet|Voidspear]] - A variant to protect [[Extra-vehicular activity|spaceborne]] combat engineers

==In-game information==
===''Halo Infinite''===
Like [[Chimera (armor)|Chimera]] before it, the Hazmat armor core was available by default during [[Season 04: Infection]], the fourth [[season]] of ''[[Halo Infinite]]'' [[multiplayer]]. It was first revealed on [[2023#May|May 26, 2023]], in an advertisement for a cross-promotion with [[Wikipedia:Dr. Squatch|Dr. Squatch]] soap.{{Ref/Twitter|Id=Squatch|Halo|1662126558176215040|Halo|Quote=Rank up your routine with the LIMITED EDITION Spartan Scrub soap and the new Spartan Shield deodorant from @drsquatchsoapco Plus unlock free Halo Infinite in-game content for Season 4 with the code inside the soap box!|D=26|M=05|Y=2023}}
{| class="wikitable" style="width: 75%;"
! scope="col" style="width: 15%" |Armor
! scope="col" style="width: 15%" |Manufacturer
! scope="col" style="width: 45%" |Lore
! scope="col" style="width: 10%" |Rarity
! scope="col" style="width: 15%" |Unlock Requirements
|-
|align="center"|[[File:HINF Hazmat Core Icon.png|75px]]<br/>Hazmat armor core
|[[Imbrium Machine Complex]]
|Project: OSTEO combat engineering suits incorporate an array of contingency systems focused on surviving extended operations in extraordinarily harsh working and combat environments.
|Common
|Unlocked by default during [[Season 04: Infection]]
|-
|align="center"|[[File:HINF - Helmet icon - Osteo.png|75px]]<br/>Osteo
|Imbrium Machine Complex
|Spartan combat engineers work in close cooperation with their Army and Marine cousins in demolition and hazmat missions, in addition to carrying out specialist tasks which require super-human reactions, strength, and situational awareness.
|Common
|Unlocked by default during Season 04: Infection
|}
====Attachments====
The following attachments are not exclusive to the OSTEO helmet, and are compatible with other helmets on the Hazmat core.
*Signaltech Deepeye

==Trivia==
The OSTEO combat engineering suit is likely named after the [[Wikipedia:Greek|Greek]] word ''[[Wiktionary:osteo-|ostéon]]'', meaning "bone."

==Gallery==
{{Linkbox|gallery=yes|gallerypage=Images of Hazmat}}
===Concept art===
<gallery>
File:HINF Concept HazmatExploration1.jpg|Early concept exploration for the OSTEO combat engineering suit.
File:HINF Concept HazmatExploration2.jpg|Near-finalized concept exploration for the OSTEO combat engineering suit.
File:HINF Concept OSTEO1.jpg|Finalized concept art of the OSTEO combat engineering suit.
File:HINF Concept OSTEO2.jpg|The previous concept art with an alternate set of shoulder pads.
File:HINF Concept HazmatAttachments.jpg|Concept exploration of several helmets and attachments for the OSTEO suit.
File:HINF Concept HazmatAttachments2.jpg|More concept exploration of helmets and attachments for the OSTEO suit.
File:HINF Concept HazmatAttachments3.jpg|More concept exploration of helmets and attachments for the OSTEO suit.
File:HINF Concept LifeguardHeartguard.jpg|Concept art of the Lifeguard Heartguard chest armor.
File:HINF Concept LifeguardDoc.jpg|Concept art of the Lifeguard Doc chest armor.
File:HINF Concept Trapbox.jpg|Concept art of the Trapbox chest armor.
File:HINF Concept SamplePack.jpg|Concept art of the Sample Pack shoulder pad.
File:HINF Concept LifeguardOXYLINK Shoulder.jpg|Concept art of the Lifeguard OXYLINK shoulder pad.
File:HINF Concept Bracepad.jpg|Concept art of the Bracepad shoulder pad.
File:HINF Concept GreenSteelSketch.jpg|Concept sketch of the Green Steel utility.
File:HINF Concept GreenSteel.jpg|Finalized concept art of the Green Steel utility.
File:HINF Concept LifeguardOXYLINK.jpg|Concept art of the Lifeguard OXYLINK kneepad.
File:HINF Concept K-SHOK Dampeners.jpg|Concept art of the K-SHOK Dampeners kneepad.
File:HINF Concept TypeKIRST.jpg|Concept art of the Type KIRST kneepad.
File:HINF Concept HazmatBoot.jpg|Concept art of the boots used with the OSTEO combat engineering suit.
</gallery>
===Promotional images===
<gallery>
File:HINF_HAZMATCore_SpartanTrio_Announce.png|Hazmat (left), as seen on the Dr. Squatch-''Halo Infinite'' tie-in website.{{Ref/Site|URL=https://uk.drsquatch.com/pages/halo?|Site=Dr. Squatch|Page=Halo|D=26|M=05|Y=2023}}
File:HINF HAZMATCore Spartan Announce.png|Another look at the Hazmat core in the Dr. Squatch advertisements.
File:HINF HAZMATCore Chest Announce.jpg|A closeup of Hazmat's chest plate.
File:HINF HazmatRenders.jpg|A pair of Hazmat armors.
File:HINF - Store icon - Combined Arms HAZMAT Papaya.png|Hazmat render.
</gallery>
===Screenshots===
<gallery>
File:HINF - Season 04 trailer - Hazmat - 00001.png|A [[SPARTAN-IV program|Spartan-IV]] wearing Hazmat, reloading a [[BR75 battle rifle]].
File:HINF - Season 04 trailer - Hazmat - 00002.png|A Spartan wearing Hazmat, utilizing a unique weapon model on the BR75.
File:HINF - Season 04 trailer - Hazmat - 00003.png|An infected Spartan wearing Hazmat during a game of [[Infection]].
File:HINF - Season 04 trailer - Hazmat - 00004.png|A group of Spartans, all wearing Hazmat.
</gallery>

==List of appearances==
*''[[Halo Infinite]]'' 
**''[[Season 04: Infection]]'' {{1st}}

==Sources==
{{Ref/Sources}}

{{Armor/Permutation|HI}}
{{Navbox/Universe/Mjolnir|Overview|Other}}
[[Category:MJOLNIR armor]]
[[Category:Armor]]
[[Category:Halo Infinite multiplayer armor permutations]]