Mek Boss Uggrim

From 40k novels. Boss Uggrim built a two handed gun that dropped a Imperium knight in one shot. He also goes through a midlife crisis since he does not want to fight or war, but just build and invent. Uggrim would rather spend all his time inventing bigger and bigger machines with his 3 comrades rather than anything else. His is a amazing orc story.

Check him out in the Red Sunz novels