User blog comment:Callofduty4/Why is it a sin for Treyarch to rip some aspects off of Infinity Ward but OK for Infinity Ward to rip off some stuff from Treyarch?/@comment-1752757-20091225220254

ok ok... everyone here has their opinions... to say u hate either game is just stupid... from their respective stand points they each have their pros and cons... and to say that IW or Treyarch stole from one another is pointless... they both make games we all buy its their jobs... doesnt matter where they got the things needed to make them... as long as it was a legal aquisation then there should be no arguement... and yea Spec Ops and Nazi Zombies are very much different being in Zombies u have endless waves of enemies who get harder by the wave which in some retrospect will make u better at the game because it ups your awareness... Spec Ops gives u those missions to do each where u can set the difficulty... only downsides to either one... Zombies can get boring after a few hours and Ops loses its replay value once u aquire the max stars for the mission