Finally! Thank you guys so much for doing this. The trailer looks amazing, and I can't wait to see more! Only thing I want to do is add my two cents. Hopefully, others, including yourselves agreee. And this actually all applies to Halo 4 too...
First take everything good from Halo Reach that you can and put it in Anniversary. Such things include:
Assasinations - Which I saw for multiplayer, but please put them in campaign too (Edit in response to replies: How does this hurt the original? You have the option not to do the assassination? And it doesn't impact gameplay, so how is adding assassinations different than updating graphics? If you don't like 'em, don't hold down melee!!! They look bad ass, which if you look bad ass up in the dictionary there is a picture of Chuck Norris, but he is actually an ancestor of Master Chief!)
Graphics - Again already in the trailer, however the Chief looked a little too polished and shiny...almost cartoonish. If you could make him look a little more beat up like in 3, or like the Spartan III's of Reach, that would be perfect.
Armor Abilitities - I am not sure about this actually, but I would be curious to see if it would work, maybe just sprint
Weapons - If you don't include new weapons, not that big of a deal, but at the very least keep the original weapons the same, ie pistol
Second, get rid of everything bad from Halo Reach such as:
No Warthogs in Multiplayer - What the hell was that about in? Yes I realize they had Warthogs if you did BTB, or Invasion or something, but you would always get demolished by a tank. What happened to the Warthog vs. Warthog battles??? My friends and I stopped playing multiplayer because of it. I still play, but they don't think it's as fun anymore, which I agree. Trying too much to be like COD??? (Edit in response to replies: People I am saying that Reach left the Warthog out of multiplayer, which was a huge mistake and needs to be fixed! I want them back so we can have those Warthog battles we loved so much in Blood Gulch and Valhalla!)
Vehicle Driving/Physics - Specifically related to the Warthog, it felt like I was driving the damn thing on a trampoline!!! It was rediculous. I think CE and 3 had the best/most similar physics for Warthog driving. Also, driving the Scorpion...waaaaay harder in Reach than in CE or 3. Please bring the physics and driving back! (Edit in response to replies: Again, I am saying the physics in Reach sucked, and so did driving the tank! Bring back the physics and driving of CE and 3)
So that's basically it. I am no computer wiz, but I feel like these things are not difficult to encorporate or tweak, since all of them already exist. But then, what do I know about computer programming and game development. I just know what I like, and that's all this is, my humble opinion about what I think Anniversary and 4 should be like.