Little Sister Encounter
Big Daddy: Rosie
There is a Little Sister located just inside the entrance to the Lower Wharf. As soon as you enter the Lower Wharf, turn to the left and jump off the boardwalk to the ground below. Use Electro Bolt to shock the Turret near the ramp ahead and hack it—this should prove helpful in the battle against the Big Daddy. Continue along the right-hand side of the area and crawl under the other boardwalk. Shock and hack the Turret located here as well and gather up the Audio Diary and other items. Grab the Medical Expert tonic near the water and take cover beneath either of the boardwalks.
Rosie is armed with a Rivet Gun that fires scorching hot rivets, albeit at a relatively slow rate. Rosie can also launch proximity grenades, so it’s very important to keep on the move and strafe back and forth in and out of cover to avoid being hit by these very deadly attacks. Fortunately, there are several Nitro Splicers and Leadhead Splicers who join the party, and you can have them do your dirty work for you.
Hit the Rosie with the Enrage plasmid to have it attack the Splicers. They’ll all start firing on each other, thereby completely ignoring you. While they attack one another, you can whittle down Rosie’s health by hitting it with Electro Bolt and Armor-Piercing bullets. Watch for the red Enrage gel to fade away then hit it with Enrage again to make sure it continues to focus its aggression on the other enemies, if they’re still around. Switch to the Shotgun and finish it off with Electric Buck.
Take the money from Rosie and head through the door to the right. Stay back out of sight of the RPG Turret in the distance under the neon signs and pick off the Leadhead Splicers one by one. Switch to Armor-Piercing bullets and use the Electro Bolt and Pistol to eliminate the Turret from afar. Now you can shop at the Gatherer’s Garden in peace. Depending on how much Adam you have to spend, consider purchasing an additional Plasmid Slot, a Health Upgrade, and Winter Blast.
Turn to the east and jump down into the water below. Destroy the Security Camera under the dock and hack the disabled Security Bot near the corpse to the right—this provides some extra firepower here. Search the watery lower level fully, especially the gated cell where the corpse is undergoing shock torture—there’s a well-hidden Audio Diary located here. The keypad controlling the gate can be hacked, but those listening closely to all Audio Diaries will know the passcode is “5380”. Climb the stairs back onto the dock and walk up and over the pile of crates to Fontaine Fisheries.