I am playing a lot of CoD. Love the Kastov -74U. My total fav weapon is the Lockwood 300 shotgun, awesome 1 shot killer at close range. I want to unlock it's hunting orange camo but I need 20 mounted kills with it, not sure how that is going to happen.
I thing with the attachments, in previous games you just added the best 5 and some perk let you have 10 add one. In this version some of the attachments definitely make the gun worse in a lot ways. A few weapons I only have 3 or 4 attachments not 5 as it really imbalances them.
Link here
Attachments for the attachment video if anyone is interested, I don't do much youtubing of games but this youtuber has some really informative stuff