1. A crazy hunter from fwc There is a knife on the gun and read fwc grimoire card the knife on the gun means the hunters perfect blade 2. The machine in the fwc grimoire card make people crazy by showing them the future the hunter then believed the only way to beat the darkness was kill guardians 3. Fwc is responsible for this gun 4. Red death is made suros regime because suros had healing on it if killed an enemy sometimes where the hunter modified it to a pulse rifle that healed you by killing any enemy guaranteed 5. Red death was made in the city age before the vanguard policy was made and all the faction where fighting for control kill each other then they made democratic society and let fwc in but no one was allowed to use red death because people killed eachother with that weapon