Algodoo

F : Fire (Auto Loading)
W/S : Aim
A/D : Move

The gun can shoots a high velocity anti-object shell.
It accelerates to VERY FAST when it hits a target.

This Tank has the script for shooting assist, so you can snipe to 5km...!?
You can use precision snipe mode when zoomed in, but the script is heavy.
If you don't need it, you should delete the orange circle.

You can see its inside when uncheck collide layer "E".

ENJOY!!