Broken weapon fire rates on infinite magazine settings

Summary

A very small % of weapons that are spawned from weapon granters have a broken fire rate, and are able to fire extremely rapidly. This is occurring on an island with infinite magazine ammo, infinite charges, infinite reserve energy, infinite load energy and infinite durability all turned out.

The resulting experience is players can stand next to shops and buy weapons on repeat until they find a ‘glitched weapon’ which is incredibly overpowered and breaks various game systems due to its power.

Notably, these weapons remain glitched if they are dropped and passed on to players, and also across lobbies (as inventories are saved using the save point device). If these weapons are consumed using a conditional button, they appear to corrupt a players data, resulting in their inventories and resources being reset the next time they load into an island. The fast firing will also only occur by rapidly tapping your fire button (e.g. click or trigger). If you hold it, it does not fast fire.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Devices

Steps to Reproduce

  1. Create an island that uses infinite reserve ammo / infinite magazine / infinite charges / infinite reserve energy / infinite loaded energy / infinite durability
  2. Set up an item granter to grant a weapon that will obviously demonstrate a broken fire rate (e.g. Rocket Launcher)
  3. Set up a button to grant the item on interact
  4. Press the button to grant a single rocket launcher, test to see if it’s broken. If it works, drops the rocket launcher and try another one. On average this may take between 20 and 50 attempts.

Expected Result

The weapon (e.g. Rocket Launcher) you eventually find to be broken will fire extremely rapidly.

Observed Result

See video link for visual reference.

Platform(s)

Identified by players across platforms including PC and PS5

Island Code

3469-7377-0976

Video

Finding a broken Flint-Knock - https://drive.google.com/file/d/1j4f7iuOag8xdoGtXGzeorzRJfnG7CUMJ/view?usp=sharing

Broken Rocket Launcher in action - https://drive.google.com/file/d/1X7CCJhEkct1mmLl-Hi-NkuwkBkmXaoi3/view?usp=sharing

Additional Notes

The closest bug report I can find to this is here: Infinite fire rate with unlimited magazine ammo This has similar observed results but a different method to reproduce (from our reference video, you can see class is not changed and reload doesn’t occur).

FORT-930645 has been ‘Backlogged’. This is an issue we’d like to address in the future.