"Probably a better question is whether we can kill it, if that initial burst didn't stop it, it's stronger than most anything I've heard of, including a little something the Scotsman'll have heard of called a Main Battle Tank."
As I speak the heavy cannons fire again, a ragged series of bone-deep thundercracks as the lighter guns maintain their grueling rattle.
We, along with forty or so dwarves and the occasional human or elf, reach the Armory, yet another sturdy ironbound door leading off the main thoroughfare and into a long room, the walls lined with racks, most of those near the door full, but the rest empty. Armor, shields, axes, swords, all the wargear this world knows along one wall, and along the other... A lighter portable version of the autoguns defending the two gates, already being wheeled out into the main hallway by an obviously experienced team, enough muskets with their simple ammunition pouches for half the fort, revolver handguns like my own, a single rack of odd, heavy break-action things with stubby single barrels, each paired with a belt of differently painted waxcloth cartridges.
I grab a steel helm and coat-of-plates easily pulled on over my smith's leathers, accompanied by a war pick of some grainy dark metal from the old wall, then an obviously modified heavy musket and a stubgun from the other.
"Grab what you will if you know how to use it, otherwise take whatever armor fits you and a sword'n'board.
{Yay, worldbuilding textwalls. ...I'm an amateur writer, guys.}