Let’s start off with some concept art and the relevant current versions 
This is our vista which the player can see after the first cutscene of the game. First we created a base and concept art for the mood so we were able to iterate.
Here is our hunter who is the first enemy encounter. He got a shotgun and from time to time a coat.
We added a huntress with a sniper rifle pretty late in the development process. The first encounter will be at around the beginning of the second half of the game.
Here is the rifle which is used for the hunter shotguns and the huntress sniper rifles. The sniper rifles also have laser sights and bullet trails so the difference is pretty obvious.
The flamethrower didn’t make it into the game because it would be another short range weapon which we already had with the shotgun.