This is another thing that shouldn't be in the game.
The R870 is the most OP, overused gun in the entire game. With laser sight and long barrel you don't stand a chance against it. People say it's only good for close range, but since 99% of all the maps are close quarters it makes it completely unbalanced. There's always that one guy on the other team going 15-16 running around hipfiring everyone. It's a joke, take it out of the game.
I have never heard of a Gun getting removed from a COD in the years ive been playing and that is sense COD 4 has come out and well for the Shot Gun i know the pain if i use it its a hit or miss sometimes i git 1 shot kills sometimes it takes 2-3 every now and then and then i look at connection and everyone has max signal ( not sure if that even matters anymore)