The line comes from Counter-Strike, the long-running tactical shooter where two teams, Counter-Terrorists and Terrorists, battle over objectives such as bombsites and hostages. At the end of every round, an announcer declares which side won, and this Counter-Terrorists version became one of the game's most recognisable sounds. Players heard it thousands of times across matches, streams and highlight videos, so it now works instantly as shorthand for a hard-earned win, even for viewers who have never played the game themselves.