The easiest map to get a nuke on has to be favela. It has very good camping spots/ hiding spots, and also when you're in your chopper gunner/AC130 you can easily pick up kills because there are so few spawn points.
Other maps which are good for nukes include:
Afghan
Rundown
Estate
The best zombie map on black ops is the Call of the Dead but really its your personal opinion
Mob Of The Dead is by far the easiest
"Dead Ops Arcade"
You do in Ascension zombies from the first map pack for black ops.
The last dlc in black ops is rezurrution which has the remastered zombie maps from world at war to black ops including a new zombie map called moon
yes yes
No the Black ops and world at war map packs come with one zombie map and 4 other maps and you must buy them that way. The 4th and last Black Ops map pack Rezurrection does come with 5 Zombie maps because it includes the 4 WAW Zombie Maps and the Zombie map Moon
the biggest zombie map that is out right now is proabably moon or call of the dead
To get the second zombie map, you have to beat the entire campaign.
The Nintendo Wii can not get any of the DLC Zombie Maps.
The 4 World at war zombie maps and the newer zombie map moon
Pentagon is the zombie map FIVE in Black Ops 1 it is a place in america