Lion was introduced to Rainbow Six Siege in 2018 as part of Operation Chimera, an attacking operator whose drone scan forces defenders to stay still or be pinged. The scan sound became a shorthand among players for being watched and exposed, long before it spread to soundboards and short edits. Outside the game, creators lift the pulse to imitate a military scanner in memes, streams and prank clips, where the familiar charge instantly tells viewers a detection is happening without any explanation needed.