User blog comment:Damac1214/Extinction Mode Reveal Trailer Released/@comment-65.78.96.160-20131029231844/@comment-5619949-20131029232203

>implying that Survival was a rip-off of Zombies mode, even though they are VERY different. Also, if IW was really trying to rip off of zombies, they would be making us fight zombies instead of aliens.