The Phalanx CIWS (pronounced "sea-wiz") is a close-in weapon system for defense against airborne threats such as anti-ship missiles and helicopters. It was designed and manufactured by the General Dynamics Corporation, Pomona Division,[5] later a part of Raytheon. Consisting of a radar-guided 20 mm Vulcan cannon mounted on a swiveling base, the Phalanx has been used by the United States Navy and the naval forces of 15 other countries. (Wikipedia)

There really isn’t much else to it. I tried to make the cannon as accurate to the real thing as possible.

AG1 to activate it.
It controls with pitch and roll. (Inverted elevation)
Unfortunately it does have a blind spot on its high 6 o’clock but that can be changed just by switching it to VTOL and Trim.

Feel free to use just Credit would be awesome.