The Dutch website PSFocus is attending the E3 and they saw the game Call of Duty: Black Ops in action. They wrote a preview about there experience.
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."
Looking forward to this game. I do hope the multiplayer is better then Modern Warfare 2, because that just didn't do it for me as an old CoD4 player. The singleplayer will atleast be fun though.