Instructions
Rotate the code wheel so that the less than symbol and the four are matched together.
Highlight the the red block under the grey 7 to input the first code symbol. Scrolling through the symbols and pick the upside down and flipped "G."
Select the next red block and input the symbol that looks like a sideways hourglass.
For the third and final red block input the symbol that looks like a diamond with a smaller diamond in the center.
Press submit and you will be shown a picture of a abandoned building. Locate the Assassin's symbol in the top right corner of the picture and press the identify button. You will unlock the piece of the puzzle known as The Bunker.