Call of Duty: Modern Warfare 3 has added a new act to its Zombies mode alongside the game’s first season, and is a bit different than the other acts that were released at launch. Here is what Zombies players need to do to start Act 4: Contact.
How to Begin Act 4: Contact in MW3 Zombies
Call of Duty: Modern Warfare 3 Zombies players canimmediately start Act 4 by equipping the mission Bad Signal under the Act 4 tabat the Zombies main menu. Anyone can immediately hop into the act regardless of how much progress was made in the previous three acts.
At the main Zombies menu, select the story mission box in the lower right corner of the menu. This page will show the first three acts, butscroll all the way to the right to reveal Act 4. The fourth act may be hidden at first, but it is available to all players.

Select it and the act will only haveone mission available: Bad Signal. It will have two objectives: “Investigate the Analomy” and “Leave the Dark Aether.” Pick the lone mission to have it equipped, and then players can start a game as normal.
Players can also select the Act 4 Bad Signal mission during the loadout phase before loading into the game. Simply start a game, and thefirst option players will get is to select a mission. A mission may already be equipped, but players can choose Edit Mission to go to the act menu if the correct one has not been equipped.

For more help with Call of Duty: Modern Warfare 3 Zombies missions, please check out our guide onhow to complete the Defeat Zakhaev missionthat will finish Act 3.
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