Knife is in default melee CF Legends. This weapon is always available in all bags that every player have and cannot be removed or thrown away during matches.
This is a basic knife all gamers have when creating a character, is in full Backpacks unless it was replaced by other melee. It is lightweight, fast and often slashing guillotine speed especially easy Headshot. The downside is that damage is not high, require special new guillotine when Headshot down the enemy.