EA seems particular fond on the door kicking-in scene in its re-launch of the Medal of Honor series, showcasing it in the game's debut trailer as well as this new set of screens.
Perhaps the image of armed soldiers kicking-in doors is EA's way of communicating its intentions to Activision and its Modern Warfare series, sort of a there's a new player in town, and he's not fond of doorknobs sort of thing. Maybe the game will ship with some sort of door kicking mini-game, to help those of us driven into a portal smashing frenzy by this provocative imagery.