Der Eisendrache:
Ragnarok DG-4 and Rocket Shield

The two buildables of Der Eisendrache in Black Ops III Zombies: the Ragnarok DG-4 Specialist weapon, its slam and trap, its three parts from the Panzersoldat, the Rocket Test and the Death Ray, and every spawn of the Rocket Shield parts, with why neither fits a First Room game.

2 min read
4 chapters
updated 2026-10-10

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Ragnarok DG-4

The Ragnarok DG-4 is the Specialist weapon of Der Eisendrache, the Zombies version of the Gravity Spikes of Multiplayer: two spikes powered by Element 115. Like the other Specialist weapons of Black Ops III, it charges by killing zombies and is used for a limited time once full.

Slam

Hit the ground with the spikes for an electric shock wave that kills every zombie nearby.

A Panzersoldat held by the lightning of a planted Ragnarok DG-4 in Der Eisendrache, Call of Duty Black Ops III Zombies

Trap

Plant the spikes to leave a ball of lightning that zaps the zombies coming close and holds them, Panzersoldats included.

Quests

It opens the way to the boss of the main quest and to the Plunger, and it fills the Keeper’s weak point during the boss fight.

The three parts

The first Panzersoldat: it drops a part when it dies. If nobody picks it up in time, the next Panzersoldat drops it again.
The Rocket Test: when the rocket is about to fire, pull the lever with a red light at the bottom of the left staircase behind the rocket, then run into the tunnel. Survive the extra zombies, burning and electrified ones among them, until the three lights of the console beside the teleporter are green and steady, then use the console quickly: the part appears in the teleporter.
The Death Ray: after its first use, a part floats above the Bastion, over the orb above the power room door or behind the Wundersphere. Grab it in flight from the Wundersphere of the Upper Courtyard or the one of the Lower Courtyard.

With the doors closed, the first Panzersoldat still drops its part in the station on round 12, but the two others are out of reach, so the Ragnarok DG-4 cannot be built in a First Room game.

Rocket Shield

The Rocket Shield returns from Shadows of Evil. Held, it blocks hits and kills in melee; on the back, it guards the player from behind. Its burst throws the player forward and knocks zombies away. A Max Ammo refills every charge, and white gas canisters with red valves around the map refill one.

Eagle plate

In the Upper Courtyard, against crates by a window right of the ground-floor entrance to Mission Control; on the floor by a corpse at a desk on the first floor of the Clock Tower; or against barrels on the left of the stairs up to the Clock Tower and its landing pad.

Screen

In the Undercroft, reached with anti-gravity: on the wall above the Pack-a-Punch platform, above the doorway to the teleporter, or on the metal rings between the Keeper statues around the pyramid.

Fuel canisters

In the Lower Courtyard: on crates by a window right of the way up from Double Tap, at the foot of the small staircase that leads only to a window, or at the base of the stairs from the landing pad up to the Death Ray.

Each part spawns at one of its three spots, chosen at random every game. All of them are behind the doors of the station.

Achievements

Not Big Enough

Trap and kill a Panzersoldat with the Ragnarok DG-4. 20G, Bronze.

Time to Slam

Revive two players protected by the Ragnarok DG-4. 15G, Bronze.