Above: All emblems from chapter 4
Emblem 1: After avoiding the first searchlight (or getting caught in it), Ada will grapple up to a higher deck. When you land, turn left to find an emblem.
Emblem 2: After you witness Carla fall, you’ll have to make your way deeper into the ship. You’ll come across one enemy in a room with several busted lockers. Make sure to check the last locker on your left for an emblem. If you get on the elevator, you’ve gone too far.
Emblem 3: Just after the cutscene on the ship’s deck where Ada speaks to Carla, check to the left of the hatch before dropping down and continuing with the level.
Emblem 4: As you make your way through the corridors of white goo, a giant face will reach out and attack you. Instead of proceeding through the door directly underneath it, turn left and check behind the consoles for an emblem.