Place it just before the action starts, then follow it with the Reload Gun sound once the weapon arrives, so the request and the reload form one short sequence. For a failed attempt, cut to the Fail Sound Meme instead and let that ending close the scene.
關於此聲音
This is a very short spoken movie line, lasting just over a second, in which a man urgently asks for a gun in a flat, matter-of-fact voice. It feels tense and immediate, like a calm request made in the middle of danger, with no wasted words. The line comes from John Wick 2.