The Briefing Room puzzles are tough early challenges in Missile Command Delta. The keypad on the wall, the missile schematics, the colorful control panel, and the hidden buttons are part of not one but two separate puzzles, both of which involve an odd red projection. If only it came with a manual…
While the keypad puzzle is mandatory, the bookcase puzzle is probably optional (based on our progress in the game), as it doesn’t seem to award any key items. Still, as you’ll be given two new missile cards at the end, it’s worth the effort. Starting with the bookcase puzzle, here’s how to solve both Briefing Room puzzles in Missile Command Delta.
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How to solve the Briefing Room bookcase puzzle
After trying to leave the bunker and meeting Rahim, you’ll be given a yellow keycard that grants access to the Briefing Room in the West Hall.
Inside the Briefing Room, you will find a projection consisting of red arrows and circles. Using the control panel on the table, you can change the direction, rotation, and size of this projection.
If you haven’t changed the red projection yet, you only need to press the purple and orange buttons a few times to get the info you need:
* Press the purple button (size) one time.
* Press the orange button (placement) three times.
If you already used the control panel and messed up the order in you which need to input the correct solution above, here’s how to position the projection correctly:
* Green button (on/off): Make sure the projection is turned on. If it’s off, press the green button once.
* Blue button (rotation): Press the button until the projection is horizontally positioned with two red circles vertically aligned on the left.
* Purple button (size): Press the button until the projection has the largest possible size.
* Orange button (placement): Press the button until the projection is aimed at the bookcase.
When placed correctly, the projection should look like this:
Walk over to the red projection. If you look closely inside the red circles on the right, you will see tiny buttons hidden between the books. There’s one such button within each red circle. Press them in the correct order, following the direction of the red arrows, to solve this puzzle.
Beware, however, that the buttons in the upper left circles are hidden inside the cabinet. Open the doors to find them.
To solve the first Briefing Room puzzle, press each bookcase button in this order:
If you follow this order correctly, each button will turn green. If you accidentally press the wrong button, it will turn red for a brief moment, after which you must try again.
Once all the buttons are green, a hatch will open on the right side of the bookcase.
Crawl through the opening to find a small storage room with two missile cards. Pick them up and return to the red projection to solve the second Briefing Room puzzle in Missile Command Delta.
How to solve the Briefing Room keypad code puzzle
The solution to the Briefing Room’s keypad puzzle isn’t on the missile schematic poster, but behind it. Walk over to the poster and aim your view at the bottom, near the small handle. An interaction prompt will pop up. Use it to remove the poster and reveal a set of numbers and letters behind it.
Next, use the control panel to change the red projection again. This time, press the orange button to aim the projection at the numbers and letters on the wall, opposite the books. Press the purple button until the projection has a medium size, then press the blue button to rotate the projection so it encircles six numbers.
Follow the numbers in the order of the arrows, and you’ve got the keypad code:
The Briefing Room’s keypad code is: 3-5-8-8-7-5.
And that solves the final Briefing Room puzzle in Missile Command Delta! You will receive a Silver Keycard, which you can use on the Training Room’s door. The Training Room is in the East Hall, past the Training Lounge.
