Duelist :
"My previous opponent would be more dangerous than you.. and he's dead"

Forgot to ask, you should really have some barks that are specifically calling out Antiquarian for being a traitor. Like calling her a Judas or something.

"John Dungeon!" bark for crusader?

Abomination (DD1 Barks):
"You lot look like rejects from an opium den's lavatory bucket."
"Thugs! I doubt any of you can even read letters!"
"I have no patience for the ignorant."

Plague Doctor (DD1 Barks):
"You halfwits are interrupting my concentration!"
"Uneducated brutes! The ignorance! The idiocy!"
"So many useful organs... all wasted on you lot."
"In my professional opinion, nothing can be done for such sorry patients!"

@MLBlue Mod loading order doesn't work for this one, but I've heard some reports that some mods have stopped working after the most recent updates. I'll investigate.

Is there a certain order you have to put mods like in the first game? Im not sure this one is working for me.

Some classic Chivalry: Medieval Warfare lines would be great.

"Your malformed skull is unfit for my piss-pot!"

"Come here, squire! I need help with my codpiece!"

Crusader:
"Foul fiend! Go back to the hell-hole you crawled from!"
"Your tactics almost make me laugh!"
"...And He shall smite the wicked and plunge them into the firery pit!" (yes, Frollo reference)
"Let's get rid off this godless filth!"

Graverobber:
"Please, perish quicker, so I can get to work"
"You think, I am done with you? HARDLY" (yes, dd1 quote, yay)
"How can you live with such face? Here, let me rearange it"
"I could use some target practice"

Vestal:
"Light has abandoned you! You will not find redemption!"
"We are chosen by the Light! You are nothing!"
“You test me? I shall demonstrate the power of my faith!"

Nice mod idea! I'll check it out.
Here's some that come to mind for me:

"<Whistles> Yeah, you!"
"Try a move on me that doesn't tickle."
"<Elaborate Stretching>"
"I'm not going to fight you. I'm going to beat the HELL out of you."
"Yodel-Ay-Hee-Hoo!"

Add @Hambers suggestion PLEASE

Lessee here
I'm just gonna shoot all over the place with tone, cause I don't think you're shooting for "sounds like it could be in the game", necessarily

General:
"Easily the ugliest thing we've seen in a few hours"
"Seems cruel to fight field mice.."

Jester:
"You're making our legend boring.."
"If anyone at the next inn asks, these fiends were ten feet tall!"

Duelist:
"Are...you asking me for fighting advice?"
"Let's see if these training dummies bleed."

Flagellant:
"I envy you."
"Tell her I said hello."
"The beautiful blessings you're about to taste! *low whine*"
"HIT. HARDER."
"You look terrible."

Plague Doctor:
"It fascinates me that you are still alive."
"I'll take better care of your body in death than you did in life."

I got like three for the raider factions from the top of my head.
"Heard of Natural Selection? Shame; It clearly didn't favor you bastards."
"I'd tell you to blow your brains out, but i'm certain there's nothing there..."
"The last time I saw something of your ilk, it was behind metal grids!"

it isn't mine but "Tell me how the grass tastes little man!"

a few insult barks to consider:

"I've fought leeches stronger than you lot!"

"Come at me you stupid... dumb... idiot!"

"So tell me, hows it feel being the ugliest thing in the area?"

"Just so you know, I slept with your mother last night"

idiot says what? ha! you fell for it again!

"Your mother was a hamster and your father smells of elderberries"

If anyone has any suggestions on funny, creative barks to add to this mod, leave 'em here!