Is PvP(or even Human vs Human) doable or would a large amount of makeshift house rules have to go into this concept? I didn't notice if this was mentioned at all in previous posts
It's a possible future expansion.
If you wanted to have 4v4 survivor fights you could.
But to me that defeats the point of a cooperative board game about hunting monsters.
So possible, but would either be a 1 off fight or require stupid levels of house rules for what would probably in the end be a 1 off fight.