The Resident Evil 4 Chainsaw Demo is a spooky taste of what's to come before the full survival-horror experience arrives on PC and console this month, and it's also hiding some extra firepower in its infested village. There are two weapons to grab in the demo, each one being a marked improvement on Leon Kennedy's regular firearm. A shotgun can be found when you're running for dear life, and if you're sneaky enough, you can also get your hands on a tactical machine pistol that can chew...