You need to go to multilayer and click quick match. You need Xbox Live and a EA account (free at EA.com).
No.
Yes, if you are buying it at a store. No, if you are buying online.
No lags with play and online play.
Go to Multiplayer tab and look for play and press it.
Yes, there are many people who still play Battlefield Bad Company 1, but most are into the 2nd one now and the third one is close to release.
Yes, You just need an EA account.
no
I can i don't know whats wrong with your internet connection.
No
Yes, but you will need a xbox360 live gold membership card to be able to play them online.
you have to sign up to ea and you have to be oer 13 on xbox live
no