Phoenix Logs/UNSC Units/Bison

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Heavy—duty cryotech support vehicle.

The Bison is a hero vehicle available to Serina. In Serina's employ it is a heavily-armored and shielded vehicle that synergizes well with other cryotech vehicles and abilities. It is fitted with a powerful Coldsnap launcher, which fires experimental cryo shells that damage and chill enemies caught in its area—of—effect. The launcher can be upgraded, which increases the launcher's range, rate of fire, and chill effect. When the Bison deploys it leeches ambient heat energy to augment its defensive systems, creating a chill aura that affects nearby enemies. These systems can also be upgraded to further boost defenses and the area of the chill aura.

Bisons are versatile, durable vehicles that served in most groundside combat elements of the old Colonial Military Authority [CMA] in a number of roles, including armored personnel carrier and recovery vehicle. It remains in service with several UNSC Army units and local militias [such as the Sedran Colonial Guard]. The variant designed by Serina uses the proven chassis as a testbed which holds a vacuum energy siphon, scientific instrumentation, and cryotech weaponry in one mobile package. As there are no Bisons aboard the Spirit of Fire at present, Isabel has looked at improving and repurposing the siphon with her own research data on Forerunner vacuum energy cells, but the delicacy and intricacy of Serina's manufacturing template complicates this effort.