Boom Rush

Old Grym Forgehand was a smith who served Durak Bitterstone long ago, before the greenskins drove our ancestors out of Ekrund. Seems we've found one of Forgehand's workshops, but the place is swarming with Orcs and Goblins. They ain't the brightest creatures, but if those Goblins tinker with old Forgehand's siege engines long enough, they might just figure a way to use it. We can't afford to be shot at with our own cannons, now can we? Best we destroy those guns before the Gobbos find a use for 'em. Here, take this blasting powder. If you see them greenskins spoilin' our goods, you put fire to fuse and set things straight. While you're up there, see if you can scrounge me up some tensioners. Forgehand's shop is bound to have some tools laying around, and I can put 'em to good use.

Travel to the Forgehand Workshop. While standing next to the Captured Cannon, use the Blasting Powder in your inventory to place it. Also look for Crates of Tensioners to resupply the Dwarf Engineers. Return to Olfgin Steelhand at Skalfson's Watch when finished.