This is a feature in some of the older Halo games where if you dismount from a turret floating in mid-air you can jump preform a jump at the end of the animation. This feature to my knowledge was present in Halo 3, Reach, 4, and H2A but was removed in Halo 5. Just a little thing that would be nice to see back in Halo Infinite. Here’s an example of what I’m talking about. Turret jumping example