How to convince my mom to let me have Battlefield 3?

So i told my mom today if i could have the game Battlefield 3, but she said to my dad "Oh look what he wants" then my mom said "it has guns and weapons". And that maybe means a no, then we stop talking about it. And do you guys know how to talk to her (without making her mad) and to convince her to let me have this game. P.S. I have good grades, i got 2 B's 2 C,s and 2 A- . Thank you for answering this questionHow to convince my mom to let me have Battlefield 3?
ask her what is so bad about guns and weapons. Tell her that you are learning about how to protect yourself and your family if an intruder or terrorist attacks you. Tell her that you will not become violent simply because you play games with guns. If you watch R-rated movies, tell her that you watch guns in movies all the time,and you're not violent. Tell her that there are studies that show that kids who play violent video-games are less likely to have stress attacks. Tell her that you have a strong sense of commitment, and will work hard in school even though you play video games.
Well it depends on your age if you feel you are old enough you should tell her your more than responsible for a game with murder and war. If you feel mature enough just tell her your not a kid anymore. And if she lets you watch movies like bf3 tell her if i can watch it why cant i play it? But make sure shes in a good mood and dont ask here every two seconds. Also Kiss up you her my saying you like nice today stuf like that. And if she disagrees say i respect your decision and walk away see will see your mature and later in the future buy it. But if you start crying for it you will never get itHow to convince my mom to let me have Battlefield 3?
tell her that battlefield 3 is your basic training before joining the army :)
are you old enough to buy it in a shop, thats the question.How to convince my mom to let me have Battlefield 3?
tell her u promise you'll try to bring up your to c's by next report card