Those people deserve to get owned, only idiots actually do that =.=
I rarely even use blackbirds, the only reason I equip them is for my teammates. I just blindly run around with scavanger pro + sleight of hand pro + marathon pro and just go sub running
Tis how I can go 100+ kills in most games
Then again half my kills come from dogs + chopper
What I usually do is I try to get both dogs AND chopper before I call them in. The thing is, if the enemy has a bunch of antiair fags (heh, I say that and I always carry a strela) then calling in the dogs a bit before you call in the choppers can keep those guys busy for a little bit and thats when I call the chopper, pwn noobs like you wouldn't believe ^_^