Der Eisendrache Map Layout: Main Spawn Area -- Outside Castle Gate -- Main Lower Courtyard Area -- Trophy Room -- Upper Courtyard -- Living Quarters -- Armory -- Mission Control -- Family Crypt -- Undercroft -- Teleporter Room -- Rocket Platform --
Easter Egg Guide Walkthrough: -- Part 1 -- Part 2 -- Part 3 -- Part 4 --
here is the guide on how to build the RAGNAROK DG-4 gravity spikes in Der Eisendrache zombies. These awesome wonder weapons can be used to slam down on zombies, just like they are used in multiplayer to attack human opponents, as well as being placed on the ground temporarily as a an electrical trap that zaps any zombies that dare to get close.
Step 1 - Panzer Soldat
The first part you need for the RAGNAROK DG-4's is obtained from killing the first Panzer Soldat that appears. Once you kill him he will drop you a part that can be picked up that goes inside the gravity spikes. As soon as you pick this part up, you are on the road to having your own set of gravity spikes to kick some zombie ass with. The Panzer Soldat normally appears around ROUND 11 or 12 and will always drop this piece so keep an eye out for it.
Step 2 - To the Death Ray Pronto!
When you have collected the first piece, make your way over to the DEATH RAY trap and turn it on. Get to a safe place out of the electrified floor as if you dip your toe into it or your hand, the results will be shocking! The only painful thing will be the 1000 credits it will cost to activate it, but its for a good cause.
Let the Death Ray trap finish its cycle until it turns off and then in the Death Ray area look up toward the sky and find a floating object hovering high up in the sky. This is actually the second part of the gravity spikes that we need to construct them. The part is only accessible by using the launch pads within the level to get the correct launch pad trajectory to another that follows the line this part is on.
If you leave it too long, the part may disappear and then reappear again. To make it reappear again however, you will need to activate the Death Ray trap again and sting you another 1000 credits. The part may not always be in the same place when it spawns initially, or when if you haven't picked it up in time it disappears then reappears, it does move around the map so keep your wits about you and pick it up as soon as you see it in the air somewhere using launch pads. Once you pick it up, you will see it in your hand when you melee attack.
Step 3 - Fly me to the Moon
The final step is performed at the ROCKET LAUNCH PAD. Head over to this area using a Launchpad or teleporter and wait until the rocket is about to do a test fire of its main engines. When it does, you do not want to be here unless you want to end up as BBQ. When the engines ignite and the doors slowly started to close, there will be a small panel just underneath the rocket that becomes active and you can open it.
Walk up to this switch and hold the USE BUTTON on it and it will flip down its cover and become active allowing you to pull down on a lever located inside it. As soon as you do, get your running shoes on and bolt for the blast proof doors that are closing in this area, so you don't get a 1000 degrees sun tan session.
Once inside the blast doors, head over to the teleporter and go up to the panel which has now been activated because of you pulling the lever outside as shown in the picture below: