Easter eggs and references (Wolfenstein: The New Order)

in short, I went through chapter 2 (like the Harbor) 3 times, but I still didn’t find how to get behind the bars when approaching which it writes Opens from the other side, I need to pick up the penultimate gold on the level there, here is the screen.

1. I haven't played it myself yet, I saw a video of the battle with the Jager boss .. in the original Wolfenstein 3D, Adolf Hitler (episode "Die, Fuhrer, Die!") also walked in an armored suit that had to be destroyed before killing him.

Spoiler
2. The game menu almost copies the cover of the original game
Spoiler

SkyraX
where somewhere not far under water you need to swim

Dr. Schmeisser
swam all the water, did not find a way there, show the screen
ps. I found it, it was not in the water, but in the same room, near one of the walls there is a passage down in the floor.

At the beginning of New Order, Fergus has a springy toy on the plane, this is a reference to Madagascar 2. The Skipper had the same one on the plane