There's so much to cover when talking about weapon stats for BF4. Simply looking at the stats alone can take a good deal of time, but looking at them in a way that makes sense to you the player and how the stats effect each other... well you could probably take a class in college about this. This is a very complex issue and one that cannot be answered in a single 10 minute video on Youtube. So, I've done my best to get you started and how to look at these stats with more than just TTK on your mind. I hope that this all makes sense and that it helps you guys out.
Link to Symthic's BF4 specific site: HERE