Peacekeeper

Peacekeeper was a virtual representation of one of Ezio Auditore da Firenze's genetic memories, relived by Desmond Miles in 2012 through the Animus.

Description
Ezio Auditore received a contract from Lorenzo de' Medici to assassinate a group of Brutes who planned to march on the Palazzo Medici.

Outcome
Ezio assassinated all of the targets in time, completing the contract.

Reference

 * Assassin's Creed II