Do you have a favorite gun? I do, it's the FNP90. Unfortunately it really only excels at short range combat like you might see indoors. In Modern Warfare 3, you'll be able to use your favorite gun, whatever it is, while it gains experience with every kill. As it levels up you unlock attachments and other upgrades for it that can transform your favorite gun into the best one for you to use in all circumstances. The following trailer gives you all the details on MW3's new weapon progression system.
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