Season 1 of Call of Duty: Modern Warfare 3 delivers the first main Easter egg quest for Zombies. This is a multi-step Easter egg that unlocks access to the Dark Aether via the rifts, and it allows you to earn this season's powerful new schematics. Here we'll guide you through completing it.

The setup

You need to complete the new Season 1 Bad Signal story mission to start this Easter egg. You'll want to make sure you're properly set up before attempting this mission, meaning you'll want to save yourself some time by loading into the match with as much gear as you can.

Here we provide a full guide for the Bad Signal story mission, including all the gear you'll need to take out the boss. Follow this guide and make sure to collect the Locked Diary item from the reward rift. Exit the mission to extract with this item.