Algodoo

Although it is neat looking the way the the turret and it's gun's move independently; the aim of the guns changes and isn't steady. I think you could get better aim stability if you had both of the guns on fixated to a single object that could pivot. Also you might need to balance out your weight distribution on the turret or make the motor that controls it have infinite strength. This would fix the constant slow slouching of the turret.

As for you cars and tanks. Something tells me that you made the cars break so easily because your bullets were having little effect. Right? Luckily you're using a fixed turret so you don't have to worry about being light. You just need to make everything (bullets and turret) heavier. Then you will be able to have the force you want to destroy the cars and tanks. Just make sure to keep the ratios the same (as in bullets:barrel etc.).

Very good Job and I can't wait to see your finished product

um i dont know what it is, but the walls dont work,
but other then that nice

uh and ur jeeps break to easy. as soon as they hit the hill they break