Jack's Lieutenants: Whitechapel is the second lieutenant hit in the Jack the Ripper DLC: former members of Whitechapel's gangs gather to decide whether to join Jack, and Evie strikes before they can.
Infiltrate the meeting place and kill all five gang leaders. Air assassinations count toward the full sync goal, so pick high ground and drop onto each target.
These five are former members of Whitechapel's many gangs, still deciding whether to join Jack. The description tells Evie to strike before they commit.
Full sync wants all five taken down from above. Find rooftops or ledges over each target and drop onto them; kills made at street level do not count toward it.
Jack made Whitechapel the centre of his operations. Cutting down the gang leaders weighing up his offer limits how far his network can grow there.
The Cannon Street meeting in the City of London dealt with four established lieutenants; this one goes after men who have not yet signed on.
Autumn of Terror
Autumn of Terror is the second Jack the Ripper memory: Evie Frye arrives at Scotland Yard in October 1888, learns from Inspector Abberline that Jacob is missing, and rides with him to Whitechapel to investigate the first murder scene.
Dear Boss
Dear Boss is the last Ripper Letters activity in the Jack the Ripper DLC: Weaversbrook needs to know whether the 'Dear Boss' letter came from a madman or a newspaperman, so Evie follows its suspected author to a dockyard and makes him talk.
From Hell
From Hell is the first Ripper Letters activity in the Jack the Ripper DLC: handwriting experts have named a suspect for a new letter, and Arthur Weaversbrook asks Evie to make sure he is not the real killer.
Jack's Lieutenants: City of London
Jack's Lieutenants: City of London is an assassination activity in the Jack the Ripper DLC: four of Jack's gang bosses meet at Cannon Street station, and Evie infiltrates the station to kill them all for Arthur Weaversbrook.