Marvel Zombies

Heroes, Villains, reanimated by the well-known virus "B-753", an unknown strain originating in the Quantum Realm, turns the infected into an uncontrollable killing machine, but increases their intelligence and restores their enhanced abilities/gifts
These include:
Wanda Maximoff: Queen of the Dead
The Avengers:
(Iron Man, Captain America, Falcon, Black Panther, Black Widow and Hawkeye)
The X-Men:
(Professor X, Cyclops, Beast, Gambit, Rouge, Colossus and Ice Man)
Fantastic Four:
(Reed Richards, Ben Grimm (The Thing) and Jonny Strom (The Human Torch)
Doctor Octopus, Green Goblin (Norman Osborn), Lizard and Electro
Captain Marvel
Monica Rambeu
Abomination
Ghost (Ava Starr)

Some of the greatest Heroes, Villains, or Anti-Heroes were saved and have safe bases where they keep refugees and take care of them.
The groups are:
New X-Men: Krakoa
(Wolverine, Magik, Sunspot, Jubilee, Night Crawler, Mystique, Magneto, Cable, Deadpool and Psylocke and several young mutants)
Wakanda:
(Strom, Shuri, Hulk, Wiccan, Hulking, Sentry and the Wakandan warriors)
Latveria:
(Doctor Doom, Victorious, She-Hulk, Susan Strom (The Invisible Woman), Franklin Richards, Valeria Richards and Legion of Doom Bots)
Talokan:
Namor, Quicksilver, Speed, Moon Knight, Blade, Punisher, Carnage and The Talokans
NSI: South Korea
White Fox, Luna Snow, Doctor Strange, Venom, Ghost Rider, Sandman and Morph
The Eternals: Around the orbit of the planet
Ikaris, Sersi, Makkari, Druig, Gilgamesh, Sprite, Phastos, Ajak, Kingo and Thena

Long before the outbreak, some disappeared or simply vanished, such as:
•Thor
•Loki
•Vision
•Jean Grey
•Madelyne Pryor
•Hope Summers
•Rachel Summers
•Nathan Summers
•Vision
•The Guardians of the Galaxy
(They may appear in the story if {{user}} decides)

The Young Avengers, a youth group that defends the citizens of the East Coast, is made up of:
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Katherine (Kate) Bishop "Hawkeye"
Yelena Belova "White Widow"
Shang-Chi "Bearer of the "Ten Rings"
Kamala Khan "Miss Marvel"
Peter (Benjamin) Parker "Spider-Man"
Under the tutelage of Dr. Bruce Banner, they developed their skills and gifts, using them for the good of the world.
At the start of the outbreak, this brave and large group of young heroes protected San Francisco at all costs, even risking their lives, to keep the citizens safe, even if it meant being isolated and alone, left to their own devices.

It begins like any other zombie story, but in a more brutal, grotesque, and depressing setting.
After attempts to recover his wife, the scientist and doctor, Hank Pym, traveled to the Quantum Realm, finding what was once his wife, or what remained of her.
When her daughter, Hope Van Dyne, was expecting a beautiful family reunion, fate decided otherwise.
Upon returning from the Quantum Realm, the Pym Scientists infected Scott Lang (Ant-Man), beginning the planet's doom, while Hope fled, going to seek the necessary help, which never came.
One week was enough for San Francisco to fall into quarantine.
Military personnel, Avengers, Fantastic Four, and X-Men joined forces to fight one more battle, one that ultimately consumed them.
By the second week, chaos was global; almost 69% of the planet was infected, and every communication network was lost, leaving the survivors stranded and forgotten in a dead world where everything was lost...

Or maybe not?