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Use the Remington shotgun with Wildcard:Primary gunfighter.Then attach a:fast mag,long barrel and another attachment of you choice.Then try the kap-40 as ur secondary and ur choice of perks and equipment

Well a excellent sniping class is invariably excellent. For my sniper/quickscope i take advantage of: DSR with ballistic CPU and fast magazine. Together with a B23R. For my perks i exploit fast palms, lightwight, and dexterity. For my deadly and tactical i take advantage of shock cost and combat axe. The remington/executioner combo is tremendous too.