Ludvig Maxis

"Greetings. If you are receiving this message, it means that Richtofen has entered the device. If you free me, I will help you minimize the damage that he will inevitably cause."

- Said after Big Bang Theory easter egg is started. "Regretfully, I am sad to inform you that the Earth, nor the inhabitants will survive."

- Said during the "Mined Games" easter egg, after taking control.

Doctor Ludvig Maxis was the lead scientist part of the project known as "Der Riese" and was the father of Samantha Maxis. The player can discover information about him after activating hidden radios. He was the leader of Group 935, aiding in the creation of the Hellhounds and Zombies. Maxis never physically appears in game, but can be heard on several radio/films reels and occasionally while in the teleporter.

Biography
Doctor Maxis worked with his assistant, Edward Richtofen, at the Waffenfabrik facility codenamed Der Riese located near Breslau, Germany. He was the leader of a secret organization named Group 935. Along with the rest of Group 935, he created the Zombies, Hellhounds and the Teleporters using Element 115. He created the Ray Gun based on plans from Shi No Numa, as well as the 31-79 JGb215, evidenced through quotes said by Richtofen on Shangri-La. As the experiments on Der Riese continued, Maxis became worried about Richtofen as he believed Richtofen was becoming a threat to him and his daughter's lives. Before the zombie outbreak, Maxis was romantically attracted to Sophia, which distracted him from his duties as the Group 935 leader. Richtofen believed Maxis was distracted and was unfit to lead Group 935 and when Richtofen learned that he didn't keep his promise to mass-produce the Wunderwaffe DG-2, Richtofen conspired against him.

Richtofen's Betrayal
Doctor Maxis was working on an experiment with his assistant Edward Richtofen that involved his daughter's pregnant dog named Fluffy. He attempted to teleport Fluffy, but the plan failed. Fluffy teleported but did not return at the Mainframe. She was teleported back to the Teleporter by an electrical force (most probably the ball of electricity players see Hellhounds spawn from in-game). Maxis demanded the door to be opened, but Edward refused. When they finally opened the door, Fluffy had transformed into the first Hellhound. Samantha ran into the room, asking her father, Maxis, what he had done to her dog. The Hellhound began to attack, destroying the room. Maxis tried to calm and reassure his daughter and then tried to escape, but Richtofen locked the door behind him, trapping him and Samantha with the raging Hellhound. Richtofen then activated the Teleporter and Maxis teleported.

Post-Betrayal
Maxis was apparently teleported to a tomb (possibly Shangri-La). Samantha was teleported to Griffin Station and trapped in the M.P.D. Richtofen, realizing that Maxis wasn't dead, told Groph to find him and calm down Samantha. When brought to his daughter, Maxis apologized to her for all that he had done to her, and then told her to kill all the members of Group 935 for betraying him. A gunshot is then heard as Samantha began her killing spree.

Stopping Richtofen's Plan
Due to his suspicions of Richtofen, Maxis had an emergency plan should Richtofen kill him and try and take control of the zombies. When Richtofen activates the zombie-controlling device, a recording of Maxis can be heard saying he can help stop Richtofen. At the end of this plan, missiles from the moon are launched at Earth, incinerating it.

Aftermath
After the Earth's destruction, Maxis realized the calculations for the rockets launched from Griffin Station were made in haste and inadvertantly destroyed the entire globe. He then activated his backup plan should his first fail, which was activating global polarization devices for an unknown purpose. Maxis enlisted the assistance of Abigail "Misty" Briarton, Russman, Marlton Johnson and Samuel Stuhlinger to complete a task in the cornfields of the Hanford Site, known as the Pylon (referred to by Maxis as, The Spire), in the Tower of Babble easter egg. Should the player follow Maxis' commands rather than Richtofen's, Maxis will claim that their help has been successful in his plans to put an end to the zombie apocalypse and Edward's reign of destruction.

Following their mission in Washington, Maxis regained contact with the group of survivors in Shanghai, where he once again used them to create an energy field to power the pylon located there, for the High Maintenance easter egg. After doing so, Maxis instructed his survivors to travel to Africa to the Rift, where the last tower required for his plans was located. He discovered that a buried western town was entombed in the catacombs but nonetheless continued with his plans. Should all three of the towers be lit in his favor, Maxis assumed power over the zombies as the new Demonic Announcer, and regretfully revealed that in his plan, the Earth and its surviving inhabitants will be forced to perish.

Trivia

 * At Der Riese there is a door with the name "L. Maxis M.D." meaning that it was his office.
 * In Kino der Toten, Maxis's voice sounds different than in Der Riese and Moon, as Maxis's voice sounds the same in those two maps.
 * It is revealed in a Moon radio that his wife is dead.
 * Ludvig Maxis also wrote Group 935's Field Operation Manual.
 * His diary can be read when selecting the option to play online for Zombies in Call of Duty: Black Ops II. Although this has been replaced with Al's Journal.