Welcome to the Line of Sight: Vietnam training area.  Whenever you see a "Training Area" sign, walk up next to it to get information.  You don't have to do any of the training exercises to complete the tutorial, so if it's too hard you can skip it.  Note that you can change the camera mode between third person and first person by pressing the "Toggle Camera Mode" key (defaults to "C").  When you are ready walk to the next sign further down the path.
