Chapter 3 - The Pier | Ada's campaign Resident Evil 6 Guide
Last update: 11 May 2016
Leave it using the hole in the roof. After a short animation you'll find yourself in an abandoned alley.
At its end you'll find the stairs leading to the flat. Go through rooms and you'll get to scaffolding, from which you can see Jake and Sherry on the raft.
Your task is to cover them with a sniper rifle.
Follow them by moving over subsequent building until you reach the high crane. When you get there, you'll have to throw do a load hanging on the line (A).
When Sherry is alone on the raft, save her by jumping with the zipline and then go to the scooter next to the piers, thus ending this stage.