Via Jeff Gerstmann's twitter:
I just noticed the stick labels are reversed.
I like how they're mapping the powers by making them combination presses or holds instead of having people fumble with menus to swap. Other than that, it's basically the Call of Duty control scheme but with melee mapped to RB instead of the right stick. Something else we can infer from this: Two standard weapons plus a heavy weapon? I'd assume that Thunderlord in the demo was in the heavy weapon slot, as was that rocket launcher. Unless they want to go for four slots and haven't shown any heavy weapons, I guess.
Excellent. That answers one of my questions.
I know it's not Halo, but part of me wishes Bungie had stayed away from more common elements in other FPSes like sprint and ADS. Though given the size of Destiny, I guess sprint is a necessity.
ADS is an interesting one. From the very little we've seen gameplay demos, it doesn't really seem to slow the player down all that much, which is usually one of the really significant problems that ADS brings to a shooter. As for the visibility issue it creates, I wouldn't be terribly surprised if a lot of the scopes in the game acted like the Halo zoom, where instead of the greyed out edges of the screen you'd get the edges of the physical scope. A lot depends on the pace of the encounters, though, so I think I'm willing to give them the benefit of the doubt even if it isn't my preferred mechanic.