Sentry guns have long been a staple of shooter and tower-defence games, where an automated turret fires on enemies without player input, and that familiar mechanical gunfire has become shorthand for automated defence online. Short clips of the firing sound circulate on soundboards and in editing packs because they are instantly recognisable even without visuals, and creators reuse them to sell a scene of a position being held. Its staying power comes from that clarity: one burst tells the audience a machine, not a person, is doing the shooting.