Call of Duty: Modern Warfare 3 is due out in a few weeks, but do you know what you are going to do once you get on the battlefield? Quite a lot has changed since 2009--Are you clear on what the new Strike Packages are? If not, you will be in for a world of hurt when it comes to racking up a good score. Fortunately, the new Strike Package vignette tells you everything you need to know about each one, so take those notebooks out.
