In Spear of Destiny: Mission 3: Ultimate Challenge, Hitler has found a way via the occult to see into the future and even travel there, and he's stealing technology in order to give the Nazis an advantage over the Allies. Site 1 and Site 3 from Doom 3 are mentioned, as well as the U-series Artifacts (including the Soul Cube). In fact, some of its research divisions have actively been involved in trying to turn demons into controllable bio-weapons, with creatures like the Advancement through the tiers came to require arcane initiation rituals, branding with demonic tattoos, and the acceptance of experimental augmentations.

As is evident during progress in the games, the populations of the UAC facilities are either killed or possessed by the hellish invaders unleashed by the teleportation experiments. At the highest ranks, the cult promised its followers power beyond mortal imagination in exchange for absolute loyalty to Pierce and her demonic masters. The older logo from the original games appears frequently on crates, machines, computers, airlocks/hatches/doors.

There are two different color version for the UAC delivery symbol printed depending on if they are cardboard or metal boxes. The facilities where the experiments take place and the marine battles the invaders are on Mars instead of its moons. The UAC on Mars was secretly aware of the existence of Hell even before the invasion. It expanded from a media conglomerate into aerospace by buying out and combining most of the then-floundering commercial aerospace industry, and made a name for itself in the field of outer space exploration by mounting a joint expedition to Mars in 2025. In Doom 3 the story is given greater depth of detail through the player's interaction with human characters, PDAs, cut scenes, and scripted events. This ultimately proved to be a deadly mistake after Pierce initiated the demonic invasion of Mars.Following the return of Samuel Hayden to Earth, the UAC split into two rival factions. Doom Eternal even links the Bethians/Ancient Martians and Night Sentinels together.

Take your favorite fandoms with you and never miss a beat. The size of the arrow/triangle appears differently on different versions of the logo as well.

On the orders of Betruger, Delta Labs sent teams through the portals to capture demons for study.

At one point B.J. The UAC logo as seen in Doom 3.

It is first seen in Mars City at the start of the game, with many examples of it appearing on equipment and screens in the Marine's HQ. There are two forms of the primary crest. The Official website to tie into the story, and is a mix of Doom 3 and Doom 3 novel material. Using an updated version of the original engine but with new textures and sprites. A new UAC logo has a roughly triangular shape, with the initials written near the bottom or base. Some say UAC BASE under the logo, rather than just UAC.

to study and store creatures and weapons developed on Mars.

Like in Doom its been invaded by a Demonic force (Devil Incarnate). It is a holographic representation of a man providing overview of the Union Aerospace Corporation 's background. Versions of the new logo show up on screens with the circle in the middle appear as Mars itself. UAC also has a base on the moon of Titan, Moon Base Titan.

The UAC is the first level of Doom (2016), and the player's first introduction to the UAC, Samuel Hayden, Olivia Pierce, the demons, and the Doom Slayer. Either circular central portion circled by three pointed triangles (usually as seen on computer screens) or three stubbed triangles (see in physical signage). UAC can be seen on some of the new weapon models such as the double chainsaw. The abbreviation is often written beneath the shapes using the customary rounded font of the games. Blazcowicz is transported to the future into a UAC base where he sees UAC boxes, and Doom computer monitors showing the sun. Statements by the company indicate that it controls territories on Earth and acts, to a large extent, as a de facto government, with its capitol in Washington, D.C., where a monument to Thomas Kelliher has been built.

As such there isn't a whole lot of new details concerning the UAC in it, and seems to deal more with Marine Military bases before going to hell, other than Hell is back, and its Marine's job to prevent another incursion.

According to Quake IV: The "Armstrong" was an Orbital Space Station in low orbit around the Earth. The company is under the control of his son Ian at this time, who is stated to be expanding the scope of quantum physics research on the currently underground Martian colony.