Lion is a French operator in Ubisoft's tactical shooter Rainbow Six Siege, and his EE-ONE-D drone scan became a familiar part of matches after he joined the roster in Operation Chimera. When the scan goes out, moving enemies are highlighted for his team, so the warning sound quickly became shorthand in gameplay clips for an enemy spotted and a bad time to move. Editors on YouTube, TikTok and soundboards reuse it outside Siege too, because even viewers who do not play the game recognise the panic of being detected.