Pickaxe glitch SQUID GAME GENESIS

Hey, does anyone know how to do the pickaxe glitch in the Genesis Squid Game map in Fortnite?

I’ve seen some players with their pickaxe during the entire match and they keep eliminating other players with it. That makes the game really unfair since most players don’t have a weapon.

I want to know how this glitch works so I can eliminate these players who are using it and making the match unfair.