Key points of Wolfenstein The New Order - U-Boot
Letter
M - Map
Armor Upgrade
Enigma Code
Health Upgrade
Gold
U-Boat map
The map on the first floor, right behind the first corridor.
You can find the map on the first floor, behind the room where you started - on the right wall.
Enigma Code 1/ Gold 1
This door if you've chosen Fergus, the one on the left if Wyatt.
After you kill the first officer and get through the first corridor, turn left and open the door (by creating a short circuit or, in case of the other door, opening the locks and cutting a hole in the tile). You'll find code 6:1 and a golden knife on the desk.
Enigma Code 2
On a bed to the right
Code 6:2 is on the right bunk right after you find the map.
Enigma Code 3
In the next room
Code 6:3 is in the same area that Enigma code 2, but in the next room on the opposite side.
Gold 2
In the room on the right
The same area where you found code 2, but two rooms farther, on the same side. A golden plate is on the crate.
Enigma code 4
Next to the captain's chair
You'll find Code 6:4 after the fight on the bridge (green room), near the captain's chair upstairs.
Enigma Code 5
Near the radio operator's post
You'll find Code 6:5 after the fight on the bridge, on the ground floor, where you have to pick up buoys. In the room on the left, near the radio operator's post.
Gold 3
In the water, on the right side of stairs
You'll find the golden skull when you reach Seth's hideout and you'll have to turn on the stairs to get to the platform. On the left in the water, near the wall's edge.
Gold 4/5/6
One of three secrets in the room
After you reach Seth's warehouse, there will be three golden items there. You'll find a robot, a golden potty and a golden crown.