Dropping into a BO7 lobby and spotting that animated BlackCell reactive camo is a whole vibe. It's not just "nice skin." It's the loud way of saying you've either put in the hours or you knew the quickest route there. If you're staring at the new Assault Rifle in your loadout and wondering how to make it look that good, you're not the only one—people ask about it nonstop, especially after...