>>2194553One of the first missions available in MHFU, you are meant to explore the map and kill some chumps for items, the quest forces you to go trough a specific path, which leads you to a hungry Tigrex, your gear does nothing to him and he destroys your ass if you get hit.
It's meant to give you a goal of sorts, it makes finally facing him a more fun experience because you get to see how much you've improved, from not being able to scratch him to being able to go toe to toe with him.
