I agree with everything you stated except for scrapping the light system. The light system now is much smoother than the old one. Not only that, but it replicates other loot games with gear ratings such as torchlight, Diablo, WoW, you get the point. This type of games character progression is based on gear. The stronger the gear the more progression. The problem in my opinion isn't the system itself, but lack of build paths at the top end of the gear spectrum. There simply isn't enough, perks, weapons, armor, sights, or what have you to actually see any difference in play styles from players. That is the major fault in the game. Lack of choices. Everyone feels the same.