Most of this new Battlefield 3 trailer consists of lighting effects and people being shot. What's got me interested is the fisticuffs in the middle.
That looked like some kind of fancy, scripted quick-time-event scenario. In a Battlefield game. Given these trailers are from the game's singleplayer campaign, that shouldn't surprise you, but this being a multiplayer game, it'll be interesting to see how much of that carries over into melee attacks against a human opponent.