Redacted Walkthrough

Shipping Container 78: First things first, head to Shipping Container 78. You'll need to get to the roof of the container next to it. Look for some climbable boxes to get up there, then use the wooden planks to bridge over to container 78. Drop inside, and the note will be at the back. Be warned, grabbing it triggers a zombie ambush – a Crusher and some military zombies will spawn. You can either fight them or make a quick getaway.

Shipping Container 58: After getting the first note, head back towards the tower where Rodriguez hangs out. You can go through the 'Beach Offensive' route or take the side gate near the tower. Once you're back at the tower, find Container 58. It's near the fenced area where you raise the gate with the red button. As soon as you get near, zombies will charge out – expect some Riot Geared Walkers and regular Walkers. This is a great spot to use your Meat Bait and some explosives like Pipe Bombs or Frag Grenades to take down the armored ones and clear out the rest. Once they're dealt with, head inside Container 58 to find the next note at the back.

Shipping Container 66 (Final Part): For the last piece of the puzzle, head inside the tower and take the rear exit to the south. Turn right and stick close to the blocky walls. You'll find another right turn that keeps you on the western side, near a deadly drop. Here, you'll encounter PVT. Delgado (a named zombie), a Butcher, and a Burster lurking in the bathroom. You can try to avoid the Burster if you want. Take down the threats, and then you can enter the final container. Inside, you'll complete the quest and snag the legendary assault rifle, 'Bodycount'.