Overall, the technical preview looked and played great! I didn’t review a feedback email. I would like to share some of my feedback here 
(1) Please bring back the Halo 5 Medals. They look better than the Halo Infinite Medals (I assume these are placeholders). The badges need to be colorful and stand out. The mono color medals in Halo Infinite doesn’t look good. The way the medals looks has an impact on the player satisfaction in earning those medals.
(2) The field of view option is excellent. It transforms the whole experience of the game. In the default FOV the game feels sluggish. But on 120 FOV the game feels fast and fluid. The sense of motion when running is great.
(3) Bot AI is great. I hope they get even more realistic with more training data. Bots can be given personalities also (similar to the AI).
(4) Make the skewer bolts send enemies flying backwards (similar to how some melee attacks send enemies flying across). If they are closed to a wall, make the skewer bolt impale / pin them to the wall. This will make the weapon feel more powerful.
(5) Please bring back the regular Covenant Carbine and the regular shotgun.
(6) Halo 2 military style competitive ranks would look good.
(7) More interesting animations for the beat down would be good. Maybe a quick knife attack / stealth kill. The elbow melee is boring to see over and over again.
(8) The rag doll death animations are pretty good. More dramatic / funny animations might add some character to the game. Halo CE had some humor to it.
(9) Don’t include the team outline in the victory stance at the end of the match. It should look crisp and clean like the begging intro. Maybe give the player some options for the victory stances.
(10) Provide a training academy to test out all the equipment and vehicles. It can be like the Carrington institute Perfect Dark. Where you can walk around and learn more about all the things in the game world.
(11) Remake the original Halo CE, 2, 3 Soundtracks. There are many musical motifs that are uniquely Halo. Bringing them back will add a lot of nostalgia.
(12) When smart-linking, things can get quite blurry. There should be an option to turn this off.
(13) When AI is equipped in the menu, it should say a couple of lines so the player can immediately get a sense for it and switch it if necessary.
(14) More equipment can be added to the mix. This will greatly improve the variety of gameplay.
(15) Please give an option to turn off the enemy outlines. Such that the player can choose only friendlies to have outlines. This will make it easy to see the armor better.