What If? Age of Ultron — Marvel
Issue: #4
TRI-CENTENNIAL BATTLES!In a world without Captain America, the United States has lost its spirit, its inspiration.A secret cabal unites to create a new Captain America in the nation's most trying time.The war veteran Frank Castle is transformed into something far more than he ever imagined - but not everyone is Steve Rogers...
Creators: Alan Fine, Axel Alonso, Dan Buckley, Joe Quesada, Joe Sabino, Rick Magyar, Guy Major, Joe Keatinge, Piotr Kowalski, Jean-Francois Beaulieu, Neil Edwards, Chris Stevens, Jim Rugg, Jon Moisan
Characters: Captain America, Iron Man, Thor, Bucky Barnes, Galactus, Spider-Man, Ultron, Angela, Wolverine, Miles Morales, Namor, Professor X, Doctor Strange, Hank Pym, Wasp, Black Bolt, M.O.D.O.K., Mister Fantastic, Red Skull, Punisher