Extra info in comments

You are a civilian and you *may* be armed depending how it goes

Romance is possible but will not be the main focus

If there is romance it is a woman given this is the Napoleonic era

OC's must be Christian so us OCs that don't visibly show any other religion

If you choose guts and black powder or will be like the game, if not it will be more realistic

Currently your OC is hearing a lot of bangs a groans and screams of pain

My OC (an american soldier) goes to investigate and sees french soldiers fighting zombies. he shoots one with his musket, another with a flintlock, and bayonets the rest.

(I said it has to be a civilian but the introduction works pretty well ngl I'll allow it) Hé! Depuis quand est-ce que les Americain sont en Europe?

yeah i came here after a little incident involving a zombie almost biting James Madison. it was only one but it was worth checking out.

Oh.. *thinks a bit* we try to defend from catacombs. They bring pushed back

Okay. show me the way.

Okay.. *turns to the two others* allez venez ont est demander au cannon

Cannon? okay, i think i saw one on my way here.

No, not that. There one across the bridge over there. We need to keep them contained to the catacombs area

okay *after fighting through a few zombies, we reach the cannon* i know how to operate a cannon.

*to be fair i brought a Nock volley gun with me* okay *goes into house and shoots multiple zombies*

No, you have a better weapon than I do, go in the houses with the others and shoot down at them, we will continually fire canister shots