Episode 4: Metamorphosis - Barry and Natalia (part 2)
Insect Larvae #2 (route 2)
If you didn't alter the flow of water by using the switch in Claire and Moira's campaign, Barry and Natalia will have to go through the hole in the fence by the shipping containers, and down the ladder here.
Climb down the ladder and head right.
The larvae is on the other side of the gate at the end.
Gimmick Box #2 (route 2)
Climb out of the waterway and up the steps to the area on the other side of the fence.
Shoot the lock off the shipping container straight ahead.
Pop over to the crate next to the fence, and you'll a Natalia-sized hole.
Crawl through and lure the mutants out into Barry's line of fire.
The Gimmick Box is inside the container.
Tower Emblem #5
When you reach the crane, head to the number three marker.
Use the lift to cross over to the other side.
Look down to spot the emblem through a hole in the floor.