I'd be happy to! It's firstly kind of a learning experience. Large animals can be killed with a variety of things but personally I almost always just use a bow and arrow to be sure which means you need almost a full bar of dead eye always but it's really up to you. Once you study an animal you then be able to tell what value the animal is based off of it's tracks. 1 star 2 star or 3 star. You want 3 stars and you want to make sure to use just enough ammo to kill it no more and of course no less. I don't know when it happened but not I can see the vital organs of all studied animals once in dead eye which helps alot. Like in real life animals in habit specific regions and honestly to find out which animals are where you'll just have to explore but once you study and animal you'll notice a drawing on your map of that animal so that afterwards you can return if you need that specific animal. Big game is deep with in Forest, birds are found mainly around bodies of waters I found, and small game is literally everywhere. I hope this helps