Fighter Squadron Composite 204 (VFC-204), also known as the "River Rattlers", is a United States Navy Reserve adversary squadron, slated to fly the F-5N/F Tiger II after having previously flown the F/A-18C/D Hornet. The squadron is based out of Naval Air Station Joint Reserve Base New Orleans, Louisiana, and is part of the U.S. Navy Reserve's Tactical Support Wing. Their radio callsign is "River"[citation needed] and their tail code is "AF".
In April 2022, plans emerged that VFA-204 would be redesignated Fighter Squadron Composite 204 (VFC-204) in October 2022 and that the squadron is slated to transition to the F-5N/F Tiger II, with the required aircraft being transferred from VFC-13, another Navy adversary squadron. The NAS Fallon, Nevada based VFC-13 will in turn receive recently retired F-16 Fighting Falcons from the U.S. Air Force.