you can mute voice volume or change the spoken language by the other characters.
No you can't unfortunately.
No, but you can change the language to French, German, Italian, Russian, and a few others.
No, Battlefield 3 does not include an option to disable strong language in dialogue.
Yes there is no doubt about it.
no
Not legally.
No, the BF4 Beta is a separate download/installation.
Now
About 25 pounds.
No, you can be any age to play Battlefield 3.
Go to multiplayer on the main menu
It unlocks at 20,000 points