https://www.cnet.com/news/fortnite-season-5-week-4-challenges-and-how-to-beat-them/

Let's have a look at what's on the priority list this week:

This should be a pretty easy one to finish for most players who build during the endgame in battle royale. But if you're not a building pro, one way to fly through this one is to play the 50 vs. 50 game mode. This way you have time to gather plenty of resources after you drop in and relative safety from the storm and opponents as you help build defenses for your team.