GameFront, "Some of Call of Duty: Black Ops‘ toughest achievements are nestled in its Zombies maps, and if you don’t spend time honing your skills in the increasingly difficult fragfest, you’ll never get many of them. With the newest DLC package, Rezurrection, there’s a new tough Zombies achievement — “Ground Control” — that requires lots of steps and paying some close attention."
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."
fun house,golf course now zombies in space.dude give it a rest...please for the sake of gaming,your killing it.