Call of Duty: Warzone has begun teasing the arrival of Zombies with a new object found in the game and occasional cryptic screen distortion.
After last night's playlist update for the battle royale behemoth, players discovered the Cold War Zombies trial machine popped up in the hospital in Warzone's rumble playlist.
This challenge machine has a popup for an interaction labelled "ZAI/ACTIVATE_ZOMBIES", but it currently does nothing. In Black Ops Cold War's Zombies mode, the trial machine lets you exchange points to trigger challenges for rewards.