If Totenreich has been chewing through your squad, the Wunderbarrage is one of those tools you'll want ready before the run gets messy. Some players jump into easier practice runs or buy CoD BO7 Bot Lobbies to get comfortable with the map flow, but you can still earn the Scorestreak the normal way if you know where to look. The catch is that you don't simply pick it up. You first have to build the Wundersignal, and that means finding a few parts, using the Jotunn Star, and not messing up a light code under pressure.
Grab the tool before you hunt the round
Don't start this step unless you already have the Jotunn Star. Without it, the route just hits a wall. Once you're set, head to the Lighthouse and go up to the second floor. Check the middle shelf by the east-facing window, tucked near the stairs. That's where the Crowbar sits. It's easy to miss if you're sprinting past zombies, so slow down for a second and take it. You'll need it for the marked crates scattered around the map.
Find the right crate and fire the Flak Gun
Now you're after a Flak Gun Round, and this is where the game likes to be annoying. The correct crate changes each match. You can read the Cargo Manifest in the War Factory for a clue, though plenty of players just check the common crates because it's quicker. Look at the V-7 crate in Dry Dock, the III-6 crate on Fjord Road, the IV-3 crate in Core Foundry, and the X-9 crate in War Factory. If you crack open the wrong one, you'll take a short debuff, usually around half a minute. It's irritating, not run-ending. Once you get the round, take it to the Flak Gun on Beacon Island, load it, then hit the gun with the Jotunn Star. The shot will smash into the huge robot head at Eidskallen Landing. Go there, dig through the wreckage, and pick up the Transmitter.
Read the lights at Tyr's Head
Take the Transmitter to Tyr's Head and place it into the empty panel. After that, keep your eyes on the two lights above the main console. They don't flash randomly. They give you two codes, one after the other. The left light is Amplitude, and the right light is Frequency. Count the flashes like you're calling them out to a teammate. If the left light blinks two times and the right light blinks five times, that code is 2 and 5. Wait for the next sequence and remember that one too. Write it down if you have to, because zombies won't politely wait while you rethink it.
Enter the codes and unlock the Controller
With both sets memorised, run to the Core Foundry and look near Double Tap for a frozen rope. You can melt the ice with a Molotov, or use a charged shot from the Jotunn Star if that's easier. Climb up and use the dials to enter the first Amplitude and Frequency pair, then the second pair. When it's correct, the Tyr P.A. confirms it, and the Wunderbarrage Controller appears in the warehouse across from Double Tap. After that, Crafting Tables can sell the Wunderbarrage for 2,000 Salvage, and yes, fishing can sometimes hand you one too. As a professional platform for convenient game currency and item services, RSVSR is a handy option for players who want smoother prep, and you can choose rsvsr CoD BO7 Bot Lobby when you want a more relaxed BO7 experience before chasing the harder Totenreich steps again.
