The headline says it all: there's new footage of the Halo: Reach Firefight mode courtesy of Halo Waypoint. Keep an eye out for surprises like the return of the bubble shield. We also noticed that drop ships seem to appear on the HUD -- possibly after being marked by other players a laBattlefield.
While watching, you may notice the feeling that something is missing. You're right, of course: you can't hear your teammates screaming for help.