The first mission, locating a Ranged Weapon, is rather simple. It shouldn’t take too long to find a Ranged Weapon among the ground items and crates. It makes no difference what kind of Ranged Weapon it is.
The next step in the objective is to demolish five pumpkins. This is not a particularly tough step, but it does take some time. If you look throughout the entire Fortnite map, you should have no trouble locating these terrifying pumpkins.