Fallen Angel

"Best not let Tachibana know, eh?"

- The Drifter

Fallen Angel is an Specialized Weapon Variant of the .44 Magnum. It was introduced as part of the A Joker's Debt expansion for Call of Duty: Age of Extinction, later added to Boss Rush, and will return in Call of Duty: Retribution.

Weapon Perks
The SWV's first weapon perk is called "Angelic Wrath" which enables it in the Verdant Forest or Haunted Forest to deal more damage against The Angel during her Boss Battles. This also applies to Boss Rush.
 * Angelic Wrath

This weapon perk unlocks after defeating The Angel once in either the Verdant Forest or Haunted Forest. Like all Specialized Weapon Variants in Boss Rush, it comes unlocked once purchased.

The SWV's "Heavy Rounds" weapon perk allows the hand cannon to deal more damage against all enemies, this includes bosses as well.
 * Heavy Rounds

This weapon perk is unlocked after killing 400 enemies with it. In Boss Rush, it comes pre-unlocked once purchased from the weapon wall.

Trivia

 * Mr. Tachibana is unaware that this SWV exists.