Hold an Energy Sword like an SMG glitch
From Halopedia, the Halo wiki
The Hold a Sword like an SMG Glitch is a glitch present in Halo 3. It is a timing related glitch in the dual-wield system. Only the connection host can see the glitch, and it can only be seen in third-person view by anyone on the host console. In first-person, it will look normal.
Tutorial
To perform this glitch, get an Energy Sword and an SMG. Find another SMG and stand on top of it. Press "Y" and VERY quickly after pressing "Y" press "LB". If done right, the second SMG should fall to the ground. Then ask someone on the host console to look at you to tell you if it worked.
Effects
The effects of this glitch are obviously that you hold the sword like an SMG, but also, you can't lunge. If you go to lunge, you will slide across the ground and bump into the person, doing no damage. You can, however, still melee. The melees are the same as sword melees, 1-hit kills. However, if viewed slow-motion in theater, the glitched sword melee looks like a ninja move. The ways that cancel the glitch are switching weapons, dropping the glitched sword, and dying. Going into Monitor mode will keep the sword glitched.
