The Girl (basement)

Chapter: 5 · Care Center: Basement
Where: Care Center Basement: Holding Cells, Boiler Room, Construction Storage, the Ventilation Tunnel grate, sometimes the Workshop and, at the end, the Elevator Passage lift.

Weak point

Light and sound. 1 Requiem round stuns her on Casual and Standard; a Molotov Cocktail freezes her briefly; conventional guns only stun her: they can't kill her.

She still can't be killed. Plugging in the power distributors (Joint Plugs) lights rooms, and those rooms become your safe zones. Crouch-walk, keep the flashlight off when she's close, and use Empty Bottles to pull her away.

This is your first good chance at the Bring Out the Big Guns trophy (stun her with the Requiem, 200 CP): in Construction Storage or in the lift.

Reward

Getting out of the basement with Emily. Bring Out the Big Guns (200 CP) if you stun her with the Requiem.

No published HP. Insanity: she's faster, takes 2-3 Requiem headshots or 2 Molotovs to stun, recovers sooner and turns up far more often outside her fixed basement spots. Bring spare Requiem rounds for the lift.

Step by step

Holding Cells (after the first Joint Plug): crouch still in the open cell, flashlight off, until she leaves.
Service Passage (cutscene): she grabs a crawling zombie. Don't shoot and don't move.
Boiler Room (after the Square Socket Wrench): keep the central boiler between you and leave on the side opposite to the one she circles. If she spots you, Molotov Cocktail and into a lit room.
Construction Storage (after its Joint Plug and again after the Forklift Key): wait in the Workshop vent or the side office until she moves away, or stun her with 1 Requiem round (counts for the trophy). After the Forklift Key she can also come out of the Ventilation Tunnel grate.
Lift: the door is jammed: interact and mash A to clear it.
Near the top she punches through the roof and grabs Grace. When the lift stops, shoot her: 1 Requiem round stuns her (and counts for the trophy); several pistol shots to the face also make her let go.
The cable snaps, she falls and loses her arm.