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R.O.S.I.E.
Cost: 50 energy
Cooldown: 2 minutes seconds
Deploy a mountable turret which deals damage physical damage per shot and fires 7 shots per second. R.O.S.I.E. has 180 ammo.

Rotating Omni-directional Sentry Integrated Exoskeleton (R.O.S.I.E ) is a   Constructor Ability in Fortnite: Save the World that was introduced in Update v6.31.

Functionality[]

R.O.S.I.E. can be placed on player-built floor structures. When placed, a mounted turret is deployed by the player, and can be used by anyone on the team. The turret fires around 7 shots per second, each dealing moderate amount of damage to Husks.

R.O.S.I.E. has a limited ammo supply, and once depleted, the turret will disappear. A shield surrounds the turret, protecting players from ranged attacks like Pitcher bones, Lobber bombshells, etc.

Hero Perks[]

Hero Perks interacting with R.O.S.I.E.:

Hero Perk

Blakebeard the Blackhearted

Avast Mateys
Increases Cannonball Damage by 40%. Converts R.O.S.I.E. to fire 30 cannonballs.
Increases Cannonball Damage by 20%.

Sentry Gunner Airheart

War of the R.O.S.I.E.
Increases R.O.S.I.E. Damage by 50% and changes its damage type to energy.
Increases R.O.S.I.E. Damage by 25%.

Sentry Gunner Krampus

Racking up the Coal
Each R.O.S.I.E. elimination increases R.O.S.I.E. Damage by 12%, up to a maximum of 30 stacks.
Each R.O.S.I.E. elimination increases R.O.S.I.E. Damage by 4%, up to a maximum of 30 stacks.

Sleuth

Cold Lead
R.O.S.I.E.'s Fire Rate is increased by 15% and Ammo Pool is increased by 20%. Every 12 damaging shots freezes all enemies within 0.5 tiles of the target for 3 seconds.
R.O.S.I.E.'s Fire Rate is increased by 15% and Ammo Pool is increased by 20%.

Team Perks[]

Happy Holidays
Requires:
3 Heroes with 2 or more stars
Reduces your Ability cooldowns by 40%. Stacks independently from other cooldown reduction perks.
Unlocked
Jilly Teacup, Monks, Sgt. Tank Gatling, or Ted

History[]

Update v6.31

Update v8.00

  • February 28th 2019: Increased base damage from 67 to 69.

Update v20.30

  • May 4th 2022: No more overheating: Commanders are now free to fire away with R.O.S.I.E. as our technological advancements have allowed us to bypass the troubles of overheating.
    • Now that overheating is no longer an issue, the Cold Lead perk will now allow R.O.S.I.E. to hold 20% more ammo.
  • Better from a distance: The damage fall off to enemies at a distance has been greatly reduced, adding more combative versatility to R.O.S.I.E.
  • Quicker activations: After initial use, it would take Commanders quite a while to be able to summon R.O.S.I.E. again. That issue will be reduced as the R.O.S.I.E. cooldown has decreased by 33%.
  • A new shield: One weakness of using R.O.S.I.E. is that it would leave its operators vulnerable to ranged attacks. Well their security is now improved with the new anti-projectile shield that will form around R.O.S.I.E. whenever it is deployed.
    • Commanders will have the option to sacrifice the shield which will trigger a large knockback. This is especially useful when hordes of melee Husks get a bit too close to the turret.

Trivia[]

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