missing: nadia Walkthrough Dead island 2 (track down the 4 digits of the code to nadia's door)

missing: nadia Dead island 2 (track down the 4 digits of the code to nadia&door) how to complete the missing Nadia mission in dead island 2 Nadia locked herself in the metro look around for signs of her track down the 4 digits of the code to nadia&door Got the code put Nadia out of her misery