Envy VISR's were developed by extreme sports enthusiasts on Mars. Though proven in environments far harsher than UNSC specifications required it took years to overcome anti-military sentiment in the boutique development house that made them.
The pattern-matching subsystem of the Ecto VISR can be set to look for specific hyperspectral and multi-modal sensory traces, a useful function when tracking stealthy xenomorphs and transient electronic whispers.
The Autumn VISR is a flawless example of software engineering and ergonomics. Approaching rampancy has inflamed its designer's auteur tendencies, resulting in a baroque design barely understandable even by other AIs.
The first VISR systems date back to the early 21st century, alternatively bloating in complexity and paring down to bare-bones HUD management since then. The Dynasty HUD is an example of the former, with dozens of embedded quality of life apps.
Initial research and development for the False Dawn VISR promised an entirely new approach for head-up displays. Unfortunately, it will require years of work on neural interfaces to make full use of the technology.
The Primeval VISR is a throwback design created after data archaeology efforts recovered novel branches of the first Mjolnir VISR codebase in burned-out Damascus Materials Testing Facility computer cores.
The Reflection VISR was created for pioneers delving into the welkin realms of slipspace, tapping into experimental sensors and probes to translate strange vibrations and trace energy patterns into some semblance of order.
A game changer for field operations, the Armorer VISR features its own augmented reality maintenance and diagnostic playbook that can walk Spartans through troubleshooting and basic repairs of most UNSC equipment.
The first Dusk VISR was created in the resource-strapped final days of the Covenant War. Among its design goals were engineering refinements that drastically reduced the need for rare earths and other strategic metals.
ONI Section Zero's used their experience with managing complicated intelligence data networks to inform the Secrets VISR design and functionality. Unfortunately there is little doubt that secret backdoors were placed in the code.
The galaxy is full of wonder and danger in equal measure. The Abyss VISR uses subtle augmented reality tricks to reduce the Spartan's exposure to psychologically stressful visual stimuli, ensuring peak performance in even the most traumatic environments.
The Rex VISR proved exceptionally capable of identifying optical aberrations associated with Jiralhanae active camouflage systems. Prototypes were used by UNSC Marine unites to track down Brute holdouts on Earth and Tribute.
Records siphoned from the Forerunner ship buried under the ice at Babd Catha informed the Starfire VISR architecture, but it will be decades before even a fraction of the sites's archived secrets are decrypted.