Delta Halo

Delta Halo

Installation 05

Origin:
Forerunner
Star System:
Coelest
Gravity Anchor:
Substance
Monitor:
2401 Penitent Tangent
Diameter:
6,214 miles (10,000km)
Gravity:
1.04 G
Atmosphere:
1.01 (N2, O2)
Surface Temperature:
-2.2°F to 107.6°F (-19°C to 42°C)

Summary

Before activating the Halo Array, the Forerunners stored dormant specimens of the Flood on each installation for future study. However, centuries before humanity located Delta Halo, the installation’s containment protocols failed. This breach led to a Flood outbreak that festered for decades due to the disappearance of the installation’s monitor – 2401 Penitent Tangent.

On November 3, 2552, the Flood captured the UNSC In Amber Clad and use it to transport the Gravemind and hundreds of combat forms off the installation to High Charity during the chaos of the Great Schism. Though the Covenant capital was lost, Elite-controlled fleets quarantined the remaining Flood parasites on Delta Halo, cauterizing the Flood-controlled containment zone using orbital bombardment.

Lisbon Station

Though the surface of the ringworld is too dangerous for permanent habitation, the UNSC continues to monitor the installation and recover useful artifacts. These activities are staged from Lisbon Station, built a safe distance away from Delta Halo’s automated defenses.

Locations

ASCENSION - WAR GAMES MAP_SET/: 118-3
When the High Prophet of Regret fled Earth, he was pursued by a number of UNSC vessels, including the corvette Coral Sea. To avoid discovery by the Covenant, the Coral Sea hid close to Delta Halo’s surface and devoted most of its time to scanning the ringworld. The crew discovered several communication relays across the installation’s surface and acquired information that is now used to reconstruct Delta Halo locations for research and War Games.

BACKWASH - WAR GAMES MAP_SET/: 098-8
Delta Halo’s primary Flood containment facilities resided in remote regions of the ring, including a series of vast bogs and swamplands. It is believed the Forerunners did this to discourage potential intruders or at least obfuscate the truth of the facility below. At some point, the Flood breached the containment facility, leading to an outbreak and formation of a Gravemind. It is unknown whether a system malfunction or outside meddling led to the breach.

BEAVER CREEK - WAR GAMES MAP_SET/: 250-5
To maintain its vast translocation grid, Delta Halo utilizes a dense web of telemetry conduits, with power generators buried in steep, narrow canyons. While scanning the installation’s surface, the Coral Sea acquired detailed information on one such canyon.

COAGULATION - WAR GAMES MAP_SET/: 701-5
Discovered by the Coral Sea, current theories surrounding this canyon’s twin outposts suggests they were used by young Forerunner Warrior-Servants seeking to prove their prowess in combat arenas. Although naval strength or superior weaponry resolved most Forerunner conflicts, ancient warrior principles did advocate for close-quarters combat from time-to-time.

COLD STORAGE: WAR GAMES MAP_SET/: 429-2
Scattered across the surface of Delta Halo were containment facilities designed to continually analyze Flood samples kept in various states of development. This particular facility specialized in determining the extremophilic thresholds of Flood-infected specimens before 2401 Penitent Tangent’s lax oversight led to a containment breach.

CONTAINMENT - WAR GAMES MAP_SET/: 639-1
This frigid, canyon-enclosed, semi-symmetrical area is likely the result of semi-randomized Forerunner landscape creation. Though the quarantine wall was not part of standard Flood containment protocols, the installation’s outbreak and lack of monitor supervision required unique countermeasures.

DESOLATION - WAR GAMES MAP_SET/: 320-5
The UNSC Coral Sea discovered this site - as well as many similar ones - hidden in Delta Halo’s dense jungles. Analysts believe this was once used by Forerunners to study the extensive collection of species retrieved by Lifeworkers during the Conservation Measure. After the activation of the Array and the dark time that followed, this facility was abandoned.

LOCKOUT - WAR GAMES MAP_SET/: 036-8
Although the UNSC In Amber Clad was destroyed during Delta Halo’s Flood outbreak, the frigate’s data nodes had already transmitted extensive details of various sites on the ring’s surface to the Master Chief. One of these – a derelict structure fixed to the ledge of a distant mountain - was the source of considerable scientific debate after his return. Subsequent analysis indicates it may have been a Forerunner research site, but the findings remain inconclusive.

RELIC - WAR GAMES MAP_SET/: 209-4
The surveillance team RECON 127 was deployed from the UNSC In Amber Clad shortly after the frigate arrived at Delta Halo. The detachment’s goal was a large structure buried under one of the installation’s many islands. Upon arrival, they encountered heavy Covenant resistance and their Albatross was shot down. Though the members of RECON 127 did not survive the following ground engagement, they did transmit a series of incredibly compelling scans of the site to In Amber Clad. The details revealed the site - dubbed ‘Relic’- was in actuality the remains of a long-dormant Forerunner vessel that had been carefully hidden below the island over one hundred millennia years ago.

REMNANT - WAR GAMES MAP_SET/: 209-11
A secluded island, hidden along the coastal regions of Delta Halo, Remnant features a towering and iconic Forerunner megalith, weathered by untold millennia. Resembling other artifacts on Delta Halo, this enigmatic megalith became the site of comprehensive research by Lisbon pioneer groups.

SANCTUARY - WAR GAMES MAP_SET/: 951-7
One data set acquired by the UNSC Coral Sea was the peculiar site dubbed ‘Sanctuary.’ In addition to advanced Forerunner architecture, Delta Halo also housed a number of stone ruins. Some have speculated these are not Forerunner structures, but were instead transported here for other species that were temporarily housed on the ring. The layout of the site indicates its purpose was more cultural than practical; possibly a memorial or cenotaph.

UPLIFT - WAR GAMES MAP_SET/: 320-91
The UNSC Coral Sea eventually encountered a Covenant infantry detachment attempting to tap into one of Delta Halo’s critical power conduits. This energy node was designed to delicately control the direction and movement of the ring as it orbited the gas giant Substance, but the Covenant believed it was also of great religious significance.

WARLOCK - WAR GAMES MAP_SET/: 405-2
Encountered by long-range survey remotes exploring Delta Halo, this looming and majestic set of structures is comprised of strange stonework that appears to have been transported from another location entirely. Its origins remain open to speculation.

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