This guide will let you know how to fix Fortnite’s “Eliminate IO Forces” Not Working in Fortnite.
You have to defeat the Three IO soldiers, you will find these three soldiers in three different locations
1- The first location is directly north of the daily bugle and east of the sleepy sound.
2- You will find the second location in the east of Logjam lumberyard and a little northwest of shifty shafts.
3- You will find the third location in southeast of Greasy Grove in the small remaining desert area that cuts off the river. Make sure to grab a gun before to the actual dig site as the IO guards will attack as soon as they spot you.
You have to kill them as soon as possible before getting spotted. There should be several small areas near each location.