Optimal weapon combination
Even though weapons can be put into tiers, you should still prioritize going for an optimal combination of weapons. As a general rule of thumb, the best combination is a shotgun, at least one automatic weapon, and a sniper or an explosive weapon. You should also always be carrying utilites such as shields.
How are weapons ranked in this list?
This tier list ranks weapons based on several criteria. Firsty, the overall damage output of the given weapon. How much damage does it do purely in numbers, but also how much damage it does relative to weapons with a similar function. Rankings are also determined by how useful a weapon is in common encounters, and how important a given weapon type is to carry in your kit. Lastly, current the meta in Fortnite has a major impact on the tier of a given weapon.