Don’t know if many people are aware of this but do you all realize there is a special attack plane loadout basically designed just for taking out the blimp?
I see rarely anyone using this loadout and then the blimp last 45 minutes and craps on everyone for an entire map.
AA guns are your friend.
The behemoth is easy to take down with all kinds of planes/AA/etc if you know where the weak points are. Same with the trains and dreadnaughts. There are smaller “parts” on these larger vehicles that need to be destroyed first, really. I love piloting the blimps though 
and dropping bombs. So much fun in a battlefield game. I haven’t got to drive the train yet and I’m not sure if you can pilot the dreadnaught or not.
I use the Bomber on Blimps…
I’m weird.
The best place to hit the blimp is the actual “Skin” of it not the little carts under it. If you hit the skin and holes appears keep on hitting that spot until it blows up and you get a parts damaged.
I fill the driver area with AA goodness. Almost always get the kill points (which i wish were spread amongst all that hit the blimp). Takes two mins to drop one.
You only kill the Gunners and blowing up the turrets don’t do as much damage as hitting the parts. Aim for the nose and then watch the health bar drop when it explodes
Thats what i meant by driver area…Basically 
yes the rockets on the planes can take it down fast, i’ve done it with 4 to 6 passes, you can do about a quarter damage each time, i’ve been in match where players do use the rockets on more than one plane and it’s taken down fast.