Must be before End Date
Must be after Start Date
He died a hero, no way should they bring him back. His son as a Spartan? Sure! That'd be the best way to do it.
For custom games sure, no way though for matchmaking.
I like H5's movement especially for bigger maps, but for smaller maps H2's felt perfect.
I feel like Halo 4's ending finished her story, however I do find 5's storyline interesting. It depends what they do with her in Infinite.
Halo: Reach is my favorite Halo collector's edition, so just like it.