Team Fortress 2, Valve's team-based shooter released in 2007, features nine distinct mercenaries, including the Russian Heavy and the patriotic American Soldier, both known for loud, over-the-top voice lines. Their panicked screams have been clipped from gameplay and voice lines and shared widely in gaming montages, meme edits and reaction videos, where the contrast between Heavy's deep voice and Soldier's frantic yell makes the panic feel larger than life. The clip remains popular because it is instantly recognisable to players and instantly funny even to viewers who have never played the game.