Item description:

This is a Knife - Play mission until the Breaker. Lower Breaker's health to almost nothing with either sniper headshots (3-4) or rounds of the MG. My starting special weapon is the Crossbow so you'll have to pick up the sniper or MG from enemies. Then finish with the knife, about 5-6 swings will do it. Alternatively, you can acquire a Tier 5 Melee upgrade called Executioner (either using Save Wizard to get the skill points or by using one of my later saves) and use one of my later saves, which will have Breakers, Reachers, and Ragers in Free Roam. It must be a stealth kill to count in Free Roam.