I don't know banana. The OP reads like you've never played a Gears game. All three of the trilogy had a tonne of the dark, tense segments you saw there. Especially one and two.
Don't get me wrong, they also had intense, OTT action, and if the game lacked that in the end I would understand your concern.
But at this point there is simply no reason to suspect that the game wont be excellent.
People had doubts about 343 Industries as well. But then they released Halo 4, and everyone shut up. We've seen that when Microsoft invests fully in a new studio, the outcomes can be astounding.
And as the previous poster said Uncharted - whilst an excellent game in its own right - shares little in common with Gears. Obviously its an action adventure game, whereas Gears is not. But if you asked which is the best shooter...well, Uncharted would lose that fight against almost any Gears of War...perhaps even Judgement 
starcraft - Playing Games = FUN, Talking about Games = SERIOUS
