COD BO3 The Giant Secret Perk

To reveal the hidden perk, we need to link all three teleporters to the Main Frame. Next, we have to find monkey bomb on mystery box. Once you have it, throw your monkey bomb inside the teleporter and teleport yourself back to the Main Frame. Do this on those two remaining teleporters. Next, on the Main Frame. You will see a Panel Board (like a remote) near pack of punch machine. If you did this correctly, You will see a big red button blinking. Press On it and a laser beam will melt those ice to reveal the secret perk.

Note: This can be done in any order.