I can't get my Halo code for whatever reason. I got the email saying I got in, with a link to the Halo Waypoint site on the email. Finally got the site to load after 25 minutes of waiting, but the site has nothing, no messages on the notification center saying that I got into the Flight like I have gotten for previous flights for MCC.

Edit: Ok, looks like the part of the site you get the codes from is still down, even though the site is up. Hurry it up and fix this 343!

Flood are far more interesting than Prometheans. There were many issues with Halo 5 and one of them was the fact you spent like 80% of it fighting Prometheans. Fighting "robots" just isn't fun. 

I do think Prometheans were improved in Halo 5 but I also almost always prefer fighting organic enemies to robotic ones, as long as they're more Halo CE Flood and not Halo 3 Flood, Halo Wars 2 nailed the atmosphere and made Flood creepy again but we don't know how well they'll play in an FPS, in particular I want to fight that Flood with the whip arm, Lol.

Flood is also my favourite enemy in Halo from a lore perspective, they're so creepy and intimidating, Lol. I too hope that most of Halo Infinite is The Banished though because I love those guys too, wrap up the evil AI storyline and I would accept Prometheans more in the future if Didact returned to lead them or they became more like side-enemies casually protecting certain Forerunner structures, like the Sentinels.