Fergus is better than Brighton when it comes to... I'd say Manster but he's better than Brighton after it too.
First off, Rapier. 12 effective Mt vs. Armours along with 5 PCC is hilarious. As in, nothing lives. This is base Fergus in his first chapter and he's already ORKOing Armours. He'll do it for 4 and 4x, the Rapier will come close to breaking and then by that time, he's a couple of shots away from Brave Sword and Fire Sword usage.
Secondly, Brave Sword. Fuck that thing. It single-handly got me through the more ridiculous parts of Chapter 5 including capturing the Sniper for his Silver Bow (sold it for 1920 which made up for the funds I had to spend next chapter on a new Axe and Lance for Dalshin and Karin since I was too busy killing soldiers rather than taking the time to capture them). 15 fucking Might on that thing and it hits twice.
Thirdly, he's just a flat out beast. I promoted him at the start of Chapter 7 with my second Hero Proof and he's raping the place.