Practicing guys? That's cheatin'!
I can successfully deploy cannon, sidewinder, one mav (never two?), cluster bombs. I can't deploy second or more mav (I'm usually in the ground or on fire by now!), or any guided munition like the Mk-82.
CBUs my favourite - a nice coverge for taking out soft targets, occasionally it'll take out a T-55 too.
Must practice myself, but not tonight - BF3 finally arrived through my letterbox!