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Midway through the Eternity Vault operation you are going to come across a lush jungle. That lush jungle is blocked at one end by a blast door with a chest in front of it.
Multiple animals roam around the jungle waiting to devour the unlucky operation that is not on their toes. Once you clear your way down to the middle you will see a path north and south and a pylon there. You must unlock these pylons in order to proceed past these doors for your last two encounters of this operation.
You will split up into two teams, you will take one north and one south, as you most likely already guessed. You will have to solve these independently of each other.
There are 3 blocks from left to right, and 4 of those rows from bottom to top. You will have two consoles at the bottom of the pylons to control which way to turn the center wheel. This wheel will go full circle back to the color it started but once it does match the two outside blocks it will automatically stop and you will then be able to solve the next row. It goes from bottom to top.