1. Don't delete Fred, Linda and Kelly in Halo Infinite. They are the all life partners of Master Chief, they are the Chief's family, and It was a great disappointment to be able to control the Blue Team in only 3 of 15 missions in Halo 5 Guardians. Please, make Blue Team the Coop Playable Characters.
2. More worked animations. The Spartan's movements in Halo 5 Guardians are very anti-naturals.
3. Destructible Scenarios. With weapons like that, It is strange that the scenarios keeps intact.
4. Realistic Protection In vehicles. When a enemy in a Ghost is firing to you Whraith (in bumper), you progressive lose your shields, even with the Wraith Door Intact. It has not logic
5. Enemies Boss no defeated in a Cutscene. This is one of great fails in Halo Games made in 343i. Didact and Jul Mdama were defeated in cutscenes without grace. Make an epic Battle.
6. Keep a story with a dark touch, because lately Halo feels a bit childish (Like Tanaka dialogues).
7. The most important Wish: To Halo Infinite, Don't delete the possitive facts in Halo 5 Guardians and the prevoius Halo Games (Related with Wish 1 in this list). For example, In Halo 4, the way 343i told the story through cinematics and gameplay was masterful, but in Halo 5 Guardians was disastrous. Make Halo Infinite a Super Evolution of previous Halo.
Halo Infinite must revolutionize more than Halo Combat Evolved. It must have better missions than Halo 2, it must be more epic than Halo 3, it must have a better story (and way of telling it) than Halo 4 and it must have better playability than Halo 5.
We all of us expected that Halo Infinite Will be the Definitive Halo