Bloom may add realism, but Bungie's "bloom" isn't how realistic or fair bloom works. They implemented it incorrectly.
Once the outer circle is outstretched, the bullet cannot hit any area inside the original circle. I have no idea why. Usually in bloom, the outer circle will outstretch, and the bullet can hit anything contained by that circle.
Realistic or not, I've never really cared about realism. So I can't really argue about that.
But I can argue that Bloom is a way of giving the worse player an advantage in a duel. With a Halo 2 BR, the bullet goes where you shoot it. This means you have to be aiming exactly at the enemies head to pull off a headshot. This requires skill. But in Reach, if you do 4 body shots and then go for the headshot at the same rate you would fire a BR, and aim at the head, you will NOT get a kill. Because for some weird reason the bullet cannot go inside the circle, only on the outside. Meanwhile, the other player, much worse than you, finally gets off 4 body shots and lazily aims at the head. This is not a very skilled player, so he aims a little to the side, and shoots. And guess what happens? The bullet happened to be in that outer circle, and kill the skilled player even when he wasn't aimed at.
That's why I don't like bloom on precision weapons. Or at least, Bungie's bloom.
343 has confirmed that they will reuse old voice actors. They've already done something with Jen Taylor.
Wait how do we know about the music?