It became a meme and a "holy grail" reference for editors and trickshotters. The file name itself started appearing in "edit packs" and montages, eventually becoming a shorthand for an elite, classic, or "perfect" clip that every editor wanted to get their hands on.
In certain internet subcultures, users ask for a "write-up" or "lore" on this specific file name as a way to gatekeep or test if someone is a "newgen" (new to the scene) or an "oldhead" who remembers the peak era of sniping montages. Technical Breakdown b5_100.mp4
Standard MP4 container, usually rendered at 60fps to allow for the slow-motion "velocity" edits popular in 2010s gaming montages. It became a meme and a "holy grail"
The name stems from a specific clip uploaded or shared by a player (often linked to the player B5 or a similar handle) showcasing a "100" score or a maximum distance hit. Technical Breakdown Standard MP4 container