Fix vehicles

[olive prawn]

How does a BFIST bradley keep shooting while his ammorack is cooking off? Doesnt make ANY sense

Also chinese tank is still notoriosly bad to drive (its been like this since china came out...) due to a horrible collision model, plz fix

[tropic rock]

Throw this under bug fixes instead of feedback. The BMP-1AM also has the ammo rack bug btw