People, people, please! Calm down, we've seen about a minute and a half of a combat demo, not a synopsis of the entire game, and don't forget it still has seven months of further developement to go. They cut and speeded the trailer up in order to show as much as possible in a short amount of time, the game proper should run a lot smoother.
I actually enjoyed this trailer, I liked the extra effects they added to the biotic and tech powers so that they actually feel powerful, the new omni-blade function looks kickass, that heavy mech (just F.Y.I it's called the Cerberus Atlas) looks great fun to take down, the grenades are making a welcome return, the guns sounded like they had much more punch behind them, and as for the lighting levels, this was one map in what looks like an under-city, how well-lit is it supposed to be? Let's have a bit more balance here, see if you can think of some things you saw that you liked, and not just go for the "Yahtzee review of Mindjack" approach, because this game DOES have stuff to recommend to it.