This clip comes from Team Fortress 2, Valve's class-based multiplayer shooter first released in 2007, and is tied to the Soldier character's exaggerated voice work. Short TF2 voice lines and screams spread widely through frag videos, game compilations and meme edits because they are instantly readable even to casual viewers. The sound remains popular in gaming culture for moments of panic, impact and comic overreaction, much like the FNAF Jumpscare Scream is used to sell a sudden shock in a clip.