https://www.pcgamer.com/fornites-adds-port-a-fortress-and-spiky-stadium-in-latest-update/

Fornite’s V5.41 update is now live and introduces a new consumable for both Battle Royale and the Playground game modes, as well as a new Horde Challenge and item.

First up, the ‘Port-a-Fortress’ has been added to the Battle Royale mode. And, yes, it is what it sounds like. Throw the consumable down, and a huge fortress will appear, handy for those that are too lazy (or too busy getting shot at) to build their own constructs. You can check it out in the short video below.