User blog comment:KATANAGOD/Black Ops 2 information according to 'Gadget Show Live’ Brochure/@comment-65.199.210.162-20120412125740/@comment-92.84.102.108-20120412132455

Using MP maps wasn't as ingenious as it was lazy. The spots that would have made survival so much better are totally absent because they are designed for MP, and if you play MP a lot you'll get tired of the maps in survival right away.