Treyarch confirmed that the multiplayer mode of Call of Duty: Black Ops is and will be free in the future. No other costs. Really. More through the link.
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."
no other cost except selling you're soul to activision
DANCE MONKEY DANCE
awaiting disagrees from the sheep
So does that mean no dumping you into lobbies with maps that you do not own in an attempt to frustrate the player into buying map packs? Because if there is still that BS then to me that is a hidden cost.