Yes
In Call of Duty: Black Ops, to go on multiplayer you have to go to multiplayer on the menu that says: CAMPAIGN MULTIPLAYER ZOMBIES OPTIONS
no.
they have to get the kills first!
When at the Multiplayer menu go to Playercard, then Edit Playercard.
Yes.
yes it will.
Not all of it is multiplayer there is a single player campaign mode and then a multiplayer mode. There might be a third part to it but we won't know until it comes out.
Yes, Call of Duty: Black Ops will have online multiplayer just like many other Call of Duty video games.
no , but call of duty modern warfare reflex (cod4) has
No
It automatically comes with the multiplayer!
No, you can only get this achievement in single player campaign or zombies.