Duty 4 is not a tactical shooter; it's certainly not a strategic military title. It is, especially in the short yet not brief single-player campaign, a roughly eight-hour fight to stay alive by you and your squadmates, your allied combatants. Staying this side of giving too much away, not all of you are going to make it, either. In terms of gameplay, very little you do matters. Save for the fact your assault team's forward movement is sometimes triggered by your arrival at waypoints, and also that you are often assigned the key role in objective tasks, like planting and detonating C4, you could hide behind a wall the whole time, and your actions would have no influence on the outcome of the game. Indeed, on the campaign's higher difficult settings, this would be the smartest decision you'll ever make in a game. Otherwise, you're going to die.
