You can not the game does not have it
Nope.
from a store
put 1 in usb and the other on bluetuth ***
huuum no
Because you have Xbox live and MW2 can be played online?
yes, i have it already and indeed you can play split screen but if you have an xbox 360 it is most prefered to play solo so u can get achievements, my gamertag is Sol Playa Arena
actually you can't. you need xbox live in order to do create-a-class. Cod: MW2 on the other hand, you don't need xboxlive for that.
Check the Leaderboards?
check in the manual from the cover
Yes, no commando, or if there was a zombie mode (like Nazi zombies in CoD WaW)
no