User blog comment:Crazy sam10/CoDWiki News - October 12 2014/@comment-1913529-20141013145553

Actually there is a bit of Call of Duty news:

http://www.charlieintel.com/2014/10/13/secret-achievement-exo-survivor-shows-bonus-exo-survival-wave-with-zombies/#/

"A secret achievement for Call of Duty: Advanced Warfare has been revealed on many sites today. The achievement is called Exo Survivor, and states that “Successfully complete the Exo Survival Bonus Wave” with an image of zombies. Now, it is important to note that this is part of the Exo-Survival co-op mode, not a different mode. "

If there is still going to be a different co-op mode, it is just definitely going to be something else for us to kill.