User blog comment:Damac1214/Some Zombie Polls with Some Extinction Polls Thrown in for Good Measure/@comment-1187559-20140117112451/@comment-3967954-20140117180707

From my experience, Tank's a lot more different in Origins. He's way more professional than he is in the other maps (mainly because he actually has an assigned mission and is serving the US government, unlike in the previous games).