In Fortnite, there are items, but there are also Vaulted items. When a weapon is vaulted, that means that you can no longer find that item in the Battle Royale mode. You can still use many of the vaulted weapons in Creative mode. Here is a list of some items that are currently vaulted.
|Tactical Submachine Gun||SMG|
|Impulse Grenades||Throwable Item|
|Rocket launcher (Common, Uncommon, and Rare)||Explosive weapon|
|Flint knock pistol||Pistol|
As of Chapter 2, Season 3 they have re-introduced the shockwave grenades with Kit's Shockwave Launcher. They also re-introduced the Bolt-Action Sniper Rifle in exchange for the Suppressed Sniper Rifle and Heavy Sniper Rifle.