Advancing through the Ashes of the Damned main Easter egg in Call of Duty:Black Ops 7 Zombies demands precision, patience, and a solid understanding of several complex mechanics. One of the most notorious roadblocks appears at the Zarya Cosmodrome, where players must complete the rocket launch puzzle. This step introduces rapidly changing symbols, constant zombie pressure, and strict timing, making it one of the most failed objectives for unprepared teams.

At first glance, the puzzle appears chaotic and random. In reality, it operates on a strict and repeatable logic system. Once you understand how the symbols translate and how the number input works, launching the rocket becomes a straightforward task. This guide explains every phase of the process so you can complete the puzzle efficiently and keep progressing toward Ol' Tessie's final upgrades and full Easter egg completion.

Before the rocket launch sequence becomes available, several prerequisite Easter egg steps must be completed. First, you'll need to obtain the Necrofluid Gauntlet. After that, all Serum components must be collected and the Serum puzzle successfully finished. You'll also need to locate and deliver three keys found along the roadways leading out of Ashwood.

Once these objectives are complete, you can unlock the DG-2 Turret Barrel upgrade for Ol' Tessie. Install the upgrade and use it to shoot the floating clock tower located in Ashwood. When the tower activates, it will begin glowing. Immediately fire the Necrofluid Gauntlet at it and reload. If done correctly, the gauntlet will shift into a spectral state with a purple glow, confirming it is fully charged.

With the gauntlet ready, travel to the Zarya Cosmodrome. You can either drive Ol' Tessie southeast from Ashwood or take the Jump Pad near Double Tap Root Beer for a faster route.

Once inside the Cosmodrome, locate the two fast-spinning array towers, positioned to the northwest and northeast of the area. Fire the charged Necrofluid Gauntlet at one tower to slow it down. Then return to Ashwood, recharge the gauntlet at the clock tower, and repeat the process for the second array.

Only after both arrays have been slowed will the rocket launch puzzle become accessible.

After dealing with the array towers, enter the Control Room at the Zarya Cosmodrome, located near the Wisp Tea machine. On the north wall, you'll see two display monitors cycling through six unfamiliar symbols.

Although the symbols change every match, they always spell one of four predetermined words. This visual randomness is what causes confusion for many players. Each symbol corresponds to a letter using a Pigpen cipher, and each letter is then converted into a number based on its alphabetical position.

The numbering system starts at A = 00 and ends at Z = 25. Once the symbols are translated into letters and then converted into numbers, you'll have the correct rocket launch code.

Turn around inside the Control Room and locate the six computer terminals on the northwest side. Each terminal cycles through numbers at high speed. Your task is to shoot the red button on each terminal to lock in the correct value.

The numbers must be entered from left to right, matching the order of the translated symbols on the screens. Precision matters—shoot too early or too late, and the wrong number will be locked in.

If the incorrect sequence is entered, the launch attempt will fail. You'll be forced to wait until the next round to try again, and worse, you'll need to recharge the array towers from scratch, all while fighting continuous zombie waves. This makes preparation and memorization extremely important.

Because of the pressure involved, many players practice this step in CoD Black Ops 7 Bot Lobbies. Bot lobbies provide a controlled environment to learn symbol recognition, terminal timing, and array management without risking a failed public match. Some players even choose to buy BO7 bot lobbies specifically to rehearse advanced Easter egg steps like the rocket launch puzzle.

Taking time to familiarize yourself with the four possible word solutions and their number equivalents drastically reduces error and stress during real runs.

When the correct number sequence is entered, the puzzle resolves instantly. Zombie spawns stop, alarms shut off, and the rocket launches skyward, confirming successful completion of the step. From there, you can continue progressing through the Ashes of the Damned main quest without further interruptions from this mechanic.

While the rocket launch puzzle initially feels overwhelming, it is completely deterministic once you understand how the symbols translate and how the numbering system works. With preparation, quick execution, and clear focus, this step becomes one of the most reliable sections of the entire Easter egg.

Learn the system, stay calm under pressure, and you'll have the rocket launching smoothly every run—bringing you one step closer to fully mastering Black Ops 7 Zombies.Take full control of your grind with MMOexp Black Ops 7 Bot Lobbies for sale. From testing Lethal Equipment to perfecting high-round routes, our bot lobbies help you optimize every aspect of your gameplay—without wasted time or frustration.