yes but not as many players will be on the normal xbox as there are on the 360
Yes, Live is available for all Xbox systems.
You do to play online on the Xbox 360 only. Other systems also have online games
yes
Both systems must be also connected to Xbox Live and you play online, but I think others can join the game and you can not have a private match
you can play online with xbox 360 and the PC. There are also other systems, but the Playstation Network or Xbox live is on the internet and not actually online gaming which Black Ops does not have.
Yes, if they both have Live or one is a guest.
You can no longer play original Xbox games on Xbox Live.
You can play it while signed into xbox live, but you cant play with other people through xbox live on oblivion.
No, you do not need Xbox LIVE to play any original Xbox games. Not all original Xbox games can be played, but Halo and Halo 2 do not need LIVE to be played on the Xbox 360. I just now tried it with my LIVE unplugged and signed in to an offline account and it let me play both of them. The previous answer was a lie, obviously.
As long as both players have Xbox Live Gold you can play 2 seperate accounts on the same console on Zombies and Multiplayer.
You can not play xbox games on a playstation 2
No, Xbox Live was created for only Xbox and Xbox 360/Xbox 360 S systems. Plus, the Wii was made by Nintendo while the Xbox systems was made by Microsoft.