12th Mountain Division

 was a division of the United States Army, deployed to Huntersville in November 2076 to enforce the quarantine imposed on the town by West Tek. They were issued strict orders to follow full containment procedures due to the viral outbreak, citing concerns about a possible pandemic. The hazmat-equipped soldiers augmented the security while West Tek researchers continued their experiments on the population, even as the mutating humans started to turn violent. Although the soldiers found West Tek authority to be detestable, at best, they followed orders and isolated the town with roadblocks and a secure perimeter.

The soldiers weren't equipped to deal with the Huntersville horror, especially Sergeant Jake Bianchi. A day into the deployment, he was tasked with leading the extraction of a Huntersvillian for West Tek. They weren't prepared to face feral mutants, one of which, a mother attempting to care for her infected son, lunged at the sergeant with a knife, forcing Private Sanderson to shoot her on the spot. The situation deteriorated rapidly from that point as the population of the town started attacking the barricades and the soldiers. By November 7, the fighting convinced Sgt. Bianchi that something was wrong, that the town was actually a test site and the people used as guinea pigs. He vowed to get to the bottom of the mystery... Which only earned him a rapid court martial, charged with gross misconduct, dereliction of duty and insubordination. He was arrested two days later and replaced with the much more pliable Sgt. Orlando Garrett, who showed the proper respect and deference for his West Tek masters.

Appearances
is mentioned in Fallout 76.