Xbox players are unable to play online with PlayStation players because they online play is run through two different domains.
Yes you must have internet connectivity in order to play multiplayer on the XBOX 360
if it can play on the Xbox 360 then it should be able to go online
Online Xbox 360 play is not free and the online multiplayer mode of Black Ops is the only format for multiplayer
if you have an xbox 360 or ps3 you can play online multiplayer
they are less than with the Xbox 360 or PS3 but you can play online multiplayer with the Wii
Yes, it has multiplayer.
No you need gold to play any multiplayer online, only 5 dollars a month tho..
The PC, PS3 and Xbox 360 versions of the game all have online multiplayer. see related link
if you want to play multiplayer on the xbox 360 you can with and without connecting to xbox live. some games you have to connect to xbox live and some you don't. when you buy a game look at the back of it and it should tell you.
online multiplayer
No but you can play single player
no