Avon Hertz

The Doomsday Heist also introduced a small storyline to the game, or heist as it's called.

In this new multiplayer storyline, the player and their friends would have to stop a billionaire by the name of Avon Hertz from destroying the world using a variety of nuclear missiles that he purchased slash hacked.

And we would learn that Avon Hertz's secret headquarters was an old military base buried beneath Mount Chiliad that he had purchased from the government a few years ago.

Yep, that's right, ladies and gentlemen, Mount Chiliad is home to a secret US military base.

Boom! Mystery solved! Right? Well, not exactly.

Apparently the military base was abandoned sometime in the Cold War, and only purchased by Mr. Hertz within the last few years or so.

Furthermore, in the final acts of the DLC, we would have to storm the Mount Chiliad base and personally kill Avon Hertz.

While we were inside the underground structure, we'd find all sorts of weird futuristic technologies that the US government shouldn't have had access to in the 1960s.