open fire
verb1
Idiomatic To begin firing (weapons) at something or someone.
- In warfare, whoever opens fire first has a greater chance of victory.
- The Atlanta was swinging through her own turn to avoid a collision with the van when the searchlight, probably from the destroyer Akatsuki, lit upon her from abaft the port beam. Captain Jenkins reacted as commanders had been trained in peacetime: "Counter-illuminate!" he shouted. His gunnery officer, Lieutenant Commander William R. D. Nickelson, Jr., preferred to respond with other hardware. At once he shouted into his headset mike: "Fuck that! Open fire!" His assistant, Lloyd Mustin, was recording accurate ranges from the narrowcasting fire-control radar and didn't need help from other wavelengths. "Action port. Illuminating ship is target," he instructed his gun captains. Mustin, controlling the after trio of five-inch mounts, and Nickelson slewed their directors onto the lights and opened fire immediately.2011, James D. Hornfischer, “28: Into the Light”, in Neptune's Inferno: The U.S. Navy at Guadalcanal, New York: Bantam Books, →ISBN, retrieved 21 Nov 2022, pages 273–274: