PSS: "Rezurrection is actually a rather interesting DLC update focusing purely on zombies and not multi-player like the past packs. At first I wasn’t too fond of it, but I gave it a go. While I am not the biggest fan of the zombie portion of the game I found myself enjoying the new map they provided, Moon. Moon adds in some new interesting concepts to the zombie atmosphere. You are brought to the middle of nowhere, where a few zombies will pop up here and there and the main characters make a few jokes. Suddenly tons of zombies will break out and start attacking you."
The video on Black Ops 1 shows some separate rooms, assets, and other features which exist outside of the boundary of the game.
From DownSights: "Black Ops is not Black Ops without Nuketown. Following the tradition of releasing Nuketown for Black Ops games, the new Black Ops Cold War game also offers a revamped Nuketown called Nuketown '84.
Nuketown '84 has the same dimensions and map layout except for the aesthetics. The map's aesthetics have changed to fit the 80s theme, with destroyed buildings and graffiti-filled walls compared to a clean 50s suburban neighborhood seen in Black Ops 1."
Jacob writes: "What do we have with the original Call of Duty: Black Ops? Quite simply, one of the best Call of Duty titles of all time."