The new BG looks pants, like Jcap said its the lighting and possible lame textures. Right now we dont know the layout of the map, so we cant really assume that.

I don't like the fact you can use jetpack with the flag.

I dont believe thats a new armor ability, Bungie wouldnt just fade the player at the end of the effect, they'd make it more hologram like, give it those scan lights and it would flicker off. Fading is done becase its easier in video effects, I think RT faked it.