Forge Help

Does anyone know how make vehicles and explosives in mid air? One more thing, does anyone know how to make killballs move along a path or direction?

To make vehicles spawn in the air and fall, place them on a piece that can be fixed. Example a block 4x4 flat, then remove the block.

To make kill balls follow a path, set them to ‘Normal’ physics, and use a man cannon to give them a trajectory