The Black Swan Yard Gang Stronghold activity is located in the southern portion of the City of London borough, on the bank of the river and almost directly south of St. Paul’s Cathedral. Completion of the stronghold requires us to take out 12 Blighters guarding the area. As with every Gang Stronghold activity, it’s a good idea to climb up to the rooftops and use your Eagle Vision to tag the enemies as soon as possible.

The Blighters holed up on this area are made up of two Snipers, three Lookouts, the Leader and six standard melee archetypes. Unless disturbed all 12 of them are usually patrolling set routes or stationary in set locations. We’ll want to take out the Lookouts early to prevent them calling in reinforcements (this will also complete an optional objective).

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Tag the enemies using Eagle Vision from the rooftops (left). The Leader can be found in a loading area by the waterfront (right).

The first Lookout can be found patrolling from north to south along the eastern edge of the restricted area. The second Lookout can be found patrolling from east to west in the northwestern corner of the restricted area. The final Lookout also patrols from east to west and back again in the southwest corner of the zone. Use the rooftops and take all three of them down (and any Snipers you bump into) before turning your attention to the Leader.

The Leader whom we’ll need to take out undetected for the optional objective hangs out in a loading area by the waterfront and will patrol around in the open area here. To kill him, simply get into range and either head shot him with a throwing knife (if you are sure it will kill him) or air assassinate him from above.

With the Lookouts and the Leader out of the way, we can go about our business of clearing out the area however you like. Once the Blighters are all dead, the memory will be completed.