User blog comment:AntiScootaTwo/"Exo Survival" co-op revealed for Advanced Warfare/@comment-737493-20140924202428/@comment-24756040-20140925023518

For me, Survival was by far the least original and most generic of the three horde modes (Zombies, Extinction, and Survival). Nothing really special, besides getting the chance to take down a helicopter with a shotgun.