Dusty Fog's Civil War 3: The Big Gun

It was the Parrot 30-Pounder rifled cannon. Eleven feet long, it weighted more than four tons and could throw a devastating shell more than two miles. It was a piece of pure Yankee hell...
And now the Union troops were using the Big Gun to bombard Rebel forces along the Arkansas line. Only Yankees would think of toting the Big Gun around. And only Dusty Fog could put it out of service...