When doing the ee take turns upgrading the fists while holding the fire staff. When the ee is fully completed (except cutscene) take turns holding gernades in the robots head and dying and when you spawn back in you'll have a one hit kill past ROUND 83! Dont grab fists again or it will go away. CONFIRMED by yothedoors on xbox.
Why must you kids come here to these forums and post about ways to cheat? It is not appreciated here...
Treyarch NEVER confirm these type of things, so that is bullsh*t for a start. Also, how can it be legit? You said you need to kill yourself inside the giants head using a grenade. There would NEVER be a step that requires you to kill yourself considering there is a ranking system behind the game.
Unless Treyarch decides to be bastards (which they are not even though they decided to release Black Ops 2) then that would be legit. But until that happens everything about this is *cue AVGN's voice* BULLSHIT.
MMy question is, is there another step( using a grenade in the head on something or even something else in the head altogether) that would make this another step for an upgraded knife or sword even. And that the while dying thing just glitches that step out. We already have seen certain steps that can be done differently to get the same result on this map as it is. That was what I was trying to get at by the initial question.