User blog comment:Drkdragonz66/Modern Warfare 3 interview: Robert Bowling talks about Spec Ops Survival/@comment-98.109.40.119-20110813022954/@comment-6656386-20110813233854

The thing is with juggernauts is you can take cover from their attacks and use turrets and remote explosives to take them out. Plus if they get in your bubble, you can toss a flash and run away. With zombies there are 24 of them running after you, there is no defense against their attacks, you have 2 claymores and 2 nades per round (useful for killing around 8/24 zombies), and there are no flashbangs which = no CQC failsafe