So I am currently building a gunship. It’s about 40 ft long and 10 ft wide. I need a gun that I can mount on the bottom of the gunship. It needs to fire heavy bullets with very high damage (burst is ok) and have a cooldown of about 3 seconds after firing. It should be about 5ft long and 1ft wide at max, (about the size of a boom 500). If anyone could build this for me I would be very grateful and would give credit on the final product. Thanks!