Field Lane is a City of London gang stronghold, once the site of a black market the police ignored and now held by Bloody Nora's Blighters. Kill the leader undetected and burn the heist plans for full sync.
The leader says Nora wants to meet the meddling twins and offers a reward for word of where they are. Another line reveals her next move is to retake Whitechapel.
The leader mentions that Kaylock has died at the hands of the Rooks, which places this raid after the Whitechapel gang war.
Bloody Nora holds three City strongholds: Field Lane, Black Swan Yard and Rosemary Lane. The borough's Templar hunts are Thomas Blackroot, Eveline Dipper and the Slaughterhouse Siblings, and its bounties are Harvey Hughes, Maude Foster and David O'Donnell.
You need to kill the stronghold leader without being detected and burn the Blighter heist plans. Take the leader first, while the stronghold is calm, then find and set fire to the plans. Burning them is the louder job, so leave it until the stealth objective is done.
Black Swan Yard
Black Swan Yard is a riverside gang stronghold in the City of London, an abandoned site Bloody Nora's Blighters took over after several failed developments. Keep lookouts from raising the alarm and kill the leader undetected for full sync.
Rosemary Lane
Rosemary Lane is a City of London gang stronghold built where the Blighters flattened part of the East End's filthiest slum for Bloody Nora. Free the captured Rooks and kill the leader undetected for full sync.
Battersea Bellows
Battersea Bellows is a Lambeth gang stronghold that Cletus Strain built on a stretch of industrial land once full of housing. Kill the leader undetected and free the captured Rooks for full sync, then claim it for the Rooks.
Blue Anchor Alley
Blue Anchor Alley is a Westminster gang stronghold under heavyweight champion Lilla Graves, on ground once busy with sailors and fishmongers. Burn the heist plans and kill the leader undetected for full sync.