The Season 4: Reloaded update for Call of Duty: Modern Warfare 3 has added the new Unstable Rifts for Zombies players to try one of the hardest challenges in the mode. Here is how to find and complete Unstable Rifts in MW3 Zombies.
How to Find Unstable Rifts in MW3 Zombies
Screenshot by Prima Games
Unstable Rifts can be found in MW3 Zombies by activating three pillars across the Urzikstan map. These pillars will spawn randomly from game to game, though there are fixed spots that players can check.