The War Machine is a grenade launcher scorestreak in Call of Duty: Black Ops 2, the 2012 Treyarch shooter that defined a generation of online multiplayer. Players earned it during matches and used it to clear rooms with bouncing explosive rounds, making its firing sound a familiar part of killstreak-heavy gameplay. As Black Ops 2 clips spread across YouTube and later short-form video, the sound became shorthand for overwhelming firepower. It remains popular today largely through nostalgia, as returning players recognise it instantly from classic COD matches.