The Kastov 762 in Call of Duty: Modern Warfare 4 asks you to make a simple trade: keep its automatic fire under control without making the rifle awkward to aim. Start with recoil-focused attachments, then adjust your sight and barrel to suit the fights you take. If you're considering CoD MW4 Boosting as a way to progress, build choices still matter once the rifle is in your hands.How do you...