I already play for several hours on BTB and to be honest Heavy vehicles are so OP, is almost impossible to destroy them even with the skewer it take 3 or 4 shots depending where you are hit him.
I honestly prefer if they can add more heavy weapons, like a the Spartans laser was a good anti vehicle weapon.
The wraith and the scorpion is so hard to destroy them, they need to nerf them a little more.