The Famas is a very popular gun. You are right about the burst, that will help you to handle the recoil. If you hold the trigger the gun will bounce all over the place.
Different guns have a different 'feel' and you simply have to find what you are most comfortable with and like the most.
Yes, many guys use the submachine guns and the rate of fire is too quick for a LMG carrier. If you carry a LMG, my favorite is the Stoner 63, you must try to control the distance, and use timing. If they get right up on you, your done. The exception is using the tomahawk, instant kill, or pulling your pistol. The pistol is good in close quarters. I personally like the CZ as it has a fully auto upgrade.
Not sure about changing the point of view, I doubt it.