Call of Duty: WWII

The Ripsaw is the craftable wonder weapon for this map. In order to fire the sawblades you will need to do the first upgrade for the saw which will be explained below:

1) Acquire the saw blade and saw handle to assemble the ripsaw. The saw blade is found near to the pack a punch (Ubersprengen) on a ledge immediately in front of you as you come up the stairs from bunker 1. The saw handle has three locations in the artillery cannon bunker: on the bottom bunk of the bunk bed near to the power switch, on a table to the right of the Geistchild machine, or on a table to the right of the Faustblitz machine.
2) Go to the buildable work station opposite the power switch in the U-boat hallways and build the ripsaw. Buy it for 2500 points.
3) Now you must harvest a charged spine from a normal zombie. To do this, kill a zombie with the saw equipped (by press ) by holding and then pressing . An animation where you rip into the zombie with the saw should ensue. Hold throughout this animation to harvest the spine. The spine will have a battery on its base; most spines will not be charged and will be dimly lit red. You need a bright red lit battery. When you get it, place it into the ripsaw crafting station.
4) Kill zombies with whatever weapons you like near to the ripsaw crafting station. The zombie souls will be sucked into the crafting station. After 20-30 kills you will be able to upgrade the saw for 500 points. You now have the weapon you need.

The upgraded ripsaw ranged attack is really bad, the blade has an awful penetrating power and so this trophy is almost impossible without an insta-kill (Totengriff) active. You’ll want to wait until an insta-kill is picked up and then line up a whole spawn of 24 zombies and fire a saw blade into them. Hopefully you kill 13 and the trophy pops.

You can however elect to upgrade the Ripsaw further and allow it to be upgraded in the Ubersprengen. For this you will need to find 6 enigma machines and note down their digits and position along the rail on the machine respectively. A video is linked below to show the locations (further explanation is under the video:

Essentially, the position the white object is along the rail indicates the position in the coordinates of the cannon the digit is. The coordinates work like this: a + or – sign followed by 2 numbers, then a + or – sign followed by a further 2 numbers. The first 3 things correspond to the height of the cannon, the last 3 things correspond to the horizontal direction of the cannon. There is a digit display above both panels to show the value it's currently at. If the number/sign you find is as far to the right as possible along the rail then that'd be the sixth digit. If the number was in the middle of the rail but nearer to the left than right, then it'd be the 3rd digit etc. The + or - will always be the 1st or 4th character. You will need to take note of all 6 characters and their position along the rail.

When you've figured out the coordinates, fire a shell there and a black battery should appear on the cannon. Pick it up and put it into the Ubersprengen and then you can upgrade the ripsaw.