Why does my Battlefield 3 beta, (for ps3) have no vehicles ?

I have friends that have the beta on Xbox 360, and ps3, that have vehicles.Why does my Battlefield 3 beta, (for ps3) have no vehicles ?
there are no vehicles in this map for the beta, which sucks because PC players get an extra map for the beta, and that's FILLED with vehicles.Why does my Battlefield 3 beta, (for ps3) have no vehicles ?
its a beta, did you think it was the actual game

make up