User blog comment:KATANAGOD/Black Ops II Day 1 Preorders Already Beating MW3's/@comment-402843-20120505201836/@comment-1913529-20120506082919

Unfortunately, Treyarch IS making this campaign non-linear. your choices will reflect your campagin's outcome, so it's not a go-back-to-play kind of thing. I think if you want to experience all branches and endings, you have to do new game each time.