- "Be advised that the American Pyramid Device is powered by the life force stored in our A.D.A.M. Units. Destroying an A.D.A.M. near the APD's life-force canisters will complete the charging process. You know what to do."
- — Rushmore
The A.P.D. was designed based on the Group 935's analysis of the Moon Pyramid Device and as such required "life forces" to be charged. Broken Arrow used Element 115 to power their A.D.A.M. Units, but Dr. Hale discovered that by using the Elemental Shard to power the A.D.A.M.s, they started to act differently, and looked more alive. One day, an A.D.A.M. broke down near the life force fuel canisters of the A.P.D., charging them.
The A.P.D. was originally created to harness the power of Element 115 to fight Samantha Maxis in the event of an attack on the United States of America. By the end of 1964, it was repurposed as an interrogation device for Project MKAlpha, an extension of Project MKUltra by the C.I.A.. Using the A.P.D. and having the subjects injected with Element 115, interrogators can control the subjects' functions, read and rewrite their memories and can manipulate their emotions. Interrogators can also induce sensory pain to the subjects; one of the subjects, Yuri Zavoyski, was killed by Cornelius Pernell during one of the interrogation sessions.
After years of exposure to Element 115, Cornelius Pernell started hearing voices; the same symptoms as Edward Richtofen after touching the M.P.D. By 1966, he had recurring dreams about merging with the Aether. On August 1967, with the help of Dr. Hale, Pernell started experimenting on himself by locking himself inside the A.P.D. and having an eletrical current pulled from the Elemental Shard flooding the machine. The tests continued until early 1968 where Pernell became Avogadro and the facility was shutdown and abandoned.
Nearly 60 years later, on July 2025, Broken Arrow agents Russman and George Barkley used the A.P.D. to transfer a sample of Avogadro to the Hanford Site. A few months later on October 13th, Primis and Ultimis arrived at Camp Edward where they turned the facility back on and activated its A.I. Rushmore. Rushmore indicated that Primis and Ultimis needed to power up the A.P.D. to get access to the Elemental Shard. This resulted with Avogadro escaping containment and triggered a nuclear explosion near the site. The crews managed to put Avogadro back inside the A.P.D. before Rushmore transfered it to Hanford. This allowed Primis and Ultimis to acquire the Elemental Shard from the A.P.D.
- The A.P.D. appears much larger than the Moon Pyramid Device.
- The A.P.D. gives a localized area of power for the being inside the device as seen by the white eyes for the zombies and Avogadro being the Demonic Announcer in Alpha Omega.