The mod features a crafting tree with 377 weapon recipes you can use with new materials. You can also craft food from the animals you kill to fight hunger and look for cures for illnesses. Realistically enough, the character builds up resistance to diseases and has lower chances to catch them again, especially if they have been cured before.
According to Grimrukh, you'll be able to configure the mod and change different aspects to fit your playstyle.