For the Onslaught trial you have to defeat waves of enemies whilst making your way through the grounds. Again, there is a time limit in which to complete the trial, with different rewards for first, second, and third place.
Just like Control, equip your Stormslinger and Blast Sling, as well as your Shadow Sling for backup – these weapons should get you through the trial pretty swiftly. And if you fail or don’t get a time that you like, you can keep trying!
Wave 1 consists of Watchers only, and you can take them out with the Stormslinger in just a couple of shots.
Wave 2 will bring some Longlegs and Scrappers to the fray.
And Wave 3 will bring you to a large open area with a rocky platform in the middle, where you’ll be surrounded by Watchers, Scrappers, and a Ravager.
When the trial is complete, return to the Keeper for your reward!