Fractured Realm

The Fractured Realm is a location featured in the epilogue of the Reformed History and A Better Tomorrow sagas. It also makes an appearance in the multiplayer map Day of the Departed in Call of Duty: Undead Warfare. It is a realm created out of the remains of the former future timeline. Because of this, it contains all of the horrors from the timeline within it, such as Unit 14's work, Element X, zombies and various other things that were to all be forgotten. It is also where Nate Richard, Francis Hernandez, Emre McElligott and Phil Stewart, the four Los Angeles Crime Family mobsters, are currently trapped in.

Reformed History and A Better Tomorrow
After the present versions of Roach, O'Ryan, Chris and TJ altered the outcome of the future timeline by eliminating their future selves and preserving their souls within the Summoning Key, the future timeline began to fracture, slowly but surely creating the Fractured Realm due to the amount of exposed Element X there was in the timeline. Once they returned to the present, the future timeline began to create rifts though reality due to the unattended teleporter left active back at the future Humane Labs. This would begin to affect the future timeline, which opened a massive rift in the skies above from the teleporter, causing the timeline to begin to bond with every timeline and dimension in existence.

To save the entire universe, four Los Angeles Crime Family mobsters, under the indirect orders of Roach, managed to travel from their timelines to the future timeline and managed to seal the rift in the sky with the use of their former Mob Boss' soul and the Summoning Key, ultimately closing off the timeline from everything else and causing it to become its own realm dubbed the Fractured Realm. With the rift closed, the four mobsters were doomed to be trapped within the realm.

Day of the Departed
In a distant timeline in 2017 on the annual Day of the Departed holiday, the rare and legendary Green Eclipse appeared, a special eclipse caused by an Element 115 meteorite passing directly in front of a normal eclipse. While the eclipse happened, a departed spirit managed to escape another distant realm and used the fabled Yin Blade to cut open a rift in reality using the powers of both the blade and the eclipse, accidentally creating a rift back to the Fractured Realm instead of the Rift of Resurrection. This enabled some zombies and Element X samples to land in Chinatown in San Fransisco, causing a zombie outbreak which caught the attention of the FBI and Cordis Die, with the latter dispatching the Mercs to investigate. A fight between the two and zombies begin within the city in order for control of the discarded Yin Blade.