The US aircraft that carried out the first airstrike on a suspected drug-trafficking boat in the Caribbean was reportedly disguised as a civilian plane – a possible war crime.

The New York Times reported that the aircraft had been painted to obscure its military identity, and its munitions were hidden inside its fuselage rather than visible under its wings.

If I had to guess, I would say the aircraft used was a MC-145B Wily Coyote or C-145A Combat Coyote or similar and the missiles were either launched from a hidden hardpoint or were launched out the back as a palletized launched effect using the Rapid Dragon system.

https://www.twz.com/41347/meet-the-mc-145b-wily-coyote-armed-special-ops-transport-plane

https://www.twz.com/9638/these-unassuming-planes-have-been-key-players-in-americas-war-on-terror

In this role, the squadron had two aircraft, the single engine Pilatus PC-12 and the twin engine C-145A Combat Coyote. The latter aircraft is the Air Force’s version of the twin engine PZL M28 Skytruck. Both aircraft use the Pratt and Whitney Canada PT6A turboprop. The 524th initially flew the twin engine Bombardier Q-200, before transitioning to the similar C-146A Wolfhound, which The War Zone already explored in an earlier piece.

https://www.airforce-technology.com/projects/mc-145b-coyote-aircraft-united-states-america/?cf-view

MC-145B Coyote aircraft has a rugged fuselage. Its high wing design coupled with the sturdy, fixed tricycle landing gear enables the aircraft to provide safe and dependable performance in austere conditions and on unprepared surfaces.

The highly modified aircraft has a cabin area, which is expected to support the deployment of large, palletised munitions such as Lockheed Martin’s cruise missile – the Joint Air-to-Surface Standoff Missile (JASSM). It also features an air-operable rear cargo ramp.

https://en.wikipedia.org/wiki/PZL_M28_Skytruck

civilian version of the MC-145b/C-145A which the military aircraft may have been disguised to look like.