Nuclear bomb glitch
From Halopedia, the Halo wiki
Template:Ratings The Nuclear bomb glitch is a powerful glitch that can be used by the help of the eXo arm glitch and a gravity hammer. A video link is here [1] and the sequel is here, [2]. As seen in the videos, you can use the glitch to kill someone on the map without being close to them. Along with being able to hover in the air and deflect grenades. Though, a side affect of it is if you melee the weilder of the nuclear bomb to death, the game will lag. It will continue to lag for the rest of the game or until you exit out of forge. After that, everything goes back to normal. You do not have to be on standoff to use this glitch.
Tactics
Like the eXo arm glitches, it is best to have a team who knows a good amount of eXo glitches. Have them help you get the glitch and go and cause havoc to the other team. It is extremely powerful and can cause massive damage to team and enemies alike, so be careful when using it with your team.