The Mark of the Survivor camo is a prestigious reward in Modern Warfare 3 and Warzone Season 4 Reloaded.

This animated camo features an electrifying design with a vibrant red that crackles like lightning across your weapon.

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To acquire it, you must complete the grueling Unstable Rift challenge in MW3 Zombies.

Here’s a ONE Esports guide to conquering this challenge so you can add the Mark of the Survivor camo to your arsenal.

How to complete the Unstable Rift challenge to unlock Mark of the Survivor camo

Unstable Rift filled with various types of undead in Modern Warfare 3 Zombies
Credit: Activision

The Mark of the Survivor is unlocked by completing the perilous Unstable Rift, a hidden realm within MW3 Zombies. Although it is possible to achieve this solo, it is strongly advised to tackle it with a squad for the best chance of success.

To access the rift, you need to locate and activate three obelisks scattered throughout the map. These obelisks appear randomly, so keep your eyes peeled.

Finding an obelisk for the Unstable Rift challenge in Modern Warfare 3 Zombies
Credit: MrDalekJD

Each obelisk displays a symbol that represents a specific ammo mod to activate it: Skull (Brain Rot), Snowflake (Cryo Freeze), Lightning Bolt (Dead Wire), or Fire (Napalm Burst).

Equip a weapon compatible with the indicated ammo mod. Approach the obelisk and interact with it to activate.

Once activated, eliminate zombies within the circular indicator while using the matching ammo mod. As you defeat zombies, the obelisk will fill up with a swirling energy and explode when fully charged, dropping a reward rift.

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Repeat the process for the remaining two obelisks. Obelisk completion is universal across the lobby. If another team completes an obelisk, it contributes to your goal.

After you clear three obelisks, the Unstable Rift portal will appear somewhere on the map, marked by a red circular symbol.

Unstable Rift portal in Modern Warfare 3 Zombies
Credit: MrDalekJD

However, the rift is accessible to everyone, meaning other teams can also enter it. Therefore, you must swiftly find the portal and move quickly to reach it first.

Once you locate the rift, interact with it. Entry requires a team vote to proceed.

The Unstable Rift then throws you into a separate arena where you need to survive five brutal waves of increasingly difficult zombies. You’ll be given 45 minutes to clear the rift.

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Communication, teamwork, and strategic weapon choices are crucial for survival. Focus on taking down the special high-value targets that spawn at the end of each wave.

If your team successfully overcomes all five waves and extracts from the rift, you’ll be rewarded with the coveted Mark of the Survivor camo.

Best loadouts for the Unstable Rift challenge

These are the best loadouts to conquer the challenging rift, according to renowned MWZ content creator MrDalekJD:

RGL-80 launcher loadout with JAK Thumper-656 for the Unstable Rift challenge in Modern Warfare 3 Zombies
Credit: MrDalekJD
RGL-80 LAUNCHER LOADOUT FOR UNSTABLE RIFT IN MW3 ZOMBIES

SLOT
ATTACHMENT
Conversion KitJAK Thumper-656
Ammunition40mm Slug (Dead Wire Detonators schematic)
Crossbow loadout for the Unstable Rift challenge in Modern Warfare 3 Zombies
Credit: MrDalekJD
CROSSBOW LOADOUT FOR UNSTABLE RIFT IN MW3 ZOMBIES

SLOT
ATTACHMENT
ArmsCarbon Elite V3
BoltsBlastcap 20″ Bolts
LaserKimura RYL33 Laser Light
OpticSlate Reflector
StockSpeedtrak Echo

Furthermore, upgrading your weapons through Pack-a-Punch will significantly increase your firepower and survivability within the rift.

READ MORE: The best SMG for Warzone Rebirth Island in Season 4 Reloaded