I have black ops for the wii, but I'm pretty sure it's the same process. Once you see his/her name in the lobby, select it. Then select send ally request then he/she will decide wether or not he/she wants you. It may take a while. In fact, he/she might not even notice the proposal!
And im sure you have a lot of proposals waiting for you right now! But once again, I have the wii and don't know how to view proposals on the PC, so sorry if the way I told you isn't the way you do it on the PC.
by using STEAM
you send them a freinds request
asfs
yes it will.
Yes, Call of Duty: Black Ops will have online multiplayer just like many other Call of Duty video games.
Online Xbox 360 play is not free and the online multiplayer mode of Black Ops is the only format for multiplayer
there is co-op online multiplayer, zombies, bots(online)
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
If you get call of duty black ops there is a zombie mode and you can play it online.(There are other call of duty's with zombie modes.)
Yes you can,You can play with friends or players online
Yes, there is online multiplayer on Call of Duty 4: Modern Warfare.
no
Online and offline.
Yes it does have online multiplayer like Cod6 it also has campaign
no.