User blog comment:Dolten/Call of Duty: Black Ops Achievements/Trophies (SPOILER ALERT)/@comment-24.201.93.146-20100930211458/@comment-28584497-20101001001357

Or perhaps BO is more open-ended than WaW. The latter had a very small amount of open-endedness, who's to say this game isn't more open-ended.