Last Hand

"This belonged to my wife Vessa. And I just want to move on, so here. It's yours. You earned it."

- Elena to the player

Last Hand is an Specialized Weapon Variant introduced in Call of Duty: Retribution. Originally given to Vessa as a gift from her wife Elena, it was eventually taken by The Outrider, the leader of the criminal gang known as the "Scorpions", though Elena was able to reclaim it after hunting down The Outrider.

In order to unlock the weapon in Call of Duty: Retribution, players will need to complete a challenge called "The Last Hand" which requires players to obtain 200 kills using Ace of Spades in either Extinction, Multiplayer or Special Operations. Progress is carried over between all three modes.

This weapon can also be Masterworked by completing its Masterwork Challenge which requires players to complete two objectives:
 * Obtain 40 kills while the Falling Apart perk is triggered.
 * Obtain 40 kills while the Revenge perk is triggered.

Weapon Perks
Reunited is more of a support-focused Weapon Perk as it allows nearby allies to regenerate their health much faster than normal. The radius that allies need to be within in order to trigger the Perk's effects is 6 meters.
 * Reunited

This Perk's ally health regeneration effects are much quicker once Last Hand has been Masterworked.

Falling Apart is a negative Weapon Perk. If there are any allies nearby using Last Hand, if they are not within 6 meters of you, you and that ally will take increased damage from all enemies and players.
 * Falling Apart

Once Masterworked, this Perk's ally radius is increased to 8 meters.

Revenge is an offense-focused Weapon Perk. If any allies nearby using Last Hand is killed, you are granted faster health regeneration and Last Hand gains increased damage.
 * Revenge

Once Masterworked, this Perk grants even faster health regeneration and provides an increased 20% damage.

Attachments
The Last Hand gains access to several SWV-specific Attachments once the weapon has been Masterworked. Only two Attachments can be equipped at a time.
 * AP-FMJ Rounds - Mixture of Armour-Piercing and Full Metal Rounds allows for increased penetration of armour, barriers and walls.
 * Extended Chamber - Increased chamber capacity due to extended chamber.
 * Long Barrel - Increases base range.
 * Heavy Barrel - Increased damage over longer ranges.

Trivia

 * The console codename hints that the Last Hand was originally meant to be either a weapon mod or a second version of Ace of Spades.