User blog comment:Crazy sam10/Official Extinction teaser released/@comment-25496444-20131027185356/@comment-3171236-20131027232226

It's funny that Call of Duty has references to Aliens, even though the two have nothing in common.

In Halo, it made sense. The Flood, Motion Tracker, Assault Rifle with an Ammo counter, and in one version, and even the spaceships and dropships looked similar.