How To Get Unlocked Guns
I have heard some people are having trouble with finding out how to use the guns they have unlocked. Well after you select a mission (not start one) look down to the bottom of the screen. It will say press Y to select firearms or guns. Then browse through them menu and use a to select a gun.
Look for animal signs and go to it, a button will say to press a letter on you control. Press it and you will get more points for your self.