I was worried about the DMR being hitscan since it was announced as such.
It really takes alot of the skill out of using precision weapons.
Some might find having to lead targets and account for spread frustrating, but I think it just keeps players honest and makes them earn kills.
You shouldn't simply have to have the reticule over a moving target to GUARANTEE a hit, you should have to account for the distance and the speed of the moving enemy.
The spread of the bursts ensures the weapon is only effective at the range intended, and not beyond, while the BR in Halo 2 could basically go toe-to-toe with a sniper rifle across the map.