One of the minor things that was lost from H3 was how the camera stayed fix while your Mongoose barrel rolled fast enough to set real life world records. This allowed for people too bored with default gameplay to grab the Sniper Rifle, the Brute Shot and some stickies and get mid air headshots or stickies after they launched themselves with the Brute Shot.
Sadly you can not do the same in Reach because of how the camera stays fixed to your player. When the Mongoose rolls the entire world spins around you.