Well, I'm annoyed now. After seemingly fixing the red triangle showing up before Slayer stopping me from entering slayer, I thought no more of it. Now when I boot up today, its back in again, and I can't get it to disappear this time. Tried closing the game and re-opening it, tried reseting the console, tried hard resetting the console, even tried wired (Though its wired through plugs, not directly to the router), but all still no luck,
After playing some of the beta a little yesterday after, I think it is more like Halo than I was fearing it wouldnt be after seeing some of the early leaked footage, and I don't think ADS is as bad as I was expecting. I sorta think of it as a "Smart zoom in" like in the past halos. I think theres just a new learning curve to learn with the new abilities and etc. I don't think I would like Halo to stand still throughout each iteration either, so I think change will be ultimately be needed, though I question whether I ultimately enjoyed it more than past Halo's online and..I'm not so sure. Felt like I could get double/triple/overkills more easily in past Halos, while now, not so much. Looking back though, the Halo's do seem a little more slow compared to Halo 5, so I think that may be a more welcome addition.
EDIT: ...Wow it decided to work just this second, after the beta was even being buggy even booting from the dashboard. Still definitely an issue from the looks of it though, thought it was just a one time thing when the beta was launching, but still happening it seems.