The best shotgunners anticipate when and where an enemy will be. One of the best skills you can have is listening to where people are standing. If you do it enough, you can even tell if they are in the air based on jump timing. On anomaly, I have it down to where I'm firing as I slide out of cover. Felwinters though lowers the bar for these kills and degrades actual skill overtime. Its like the days of thorn from d1. The weapon had such ease of use that the skill of the user hardly played a roll in the weapons overall performance. Felwinters, just my opinion, is like the thorn of shotguns.