ready at dawn guys are confident. that's all that matters. anyone who has never played their psp games don't know their calibre. game is w.i.p. and is at least 6 months away.
there will be plenty of opportunities to see the game again. this is the first out of many, that's for sure. 10-20 seconds of gunplay isn't really worth flipping tables over or writing the game off. from the other trailer, it seems it has some last of us vibe, which is very exciting. the story and atmosphere will be there. weapons will have alternate fire like resistance/unreal. that's all they want to share and that's fine. i am more worried about infamous because we haven't seen mission structures, enemy types, even other powers, etc. and it's releasing next month. this game has a half-year. i am not saying this will be the best, but given rad's track record and knowing that they still have much to show (it's quite obvious that they do), it's safe to be very optimistic.
people wanting some "revolutionary" gameplay, they don't even know what they want to see. what they know is what they don't want to see.