Can't Complete Gunner Trial III

[HeadOnFire]

I've tried multiple times now. I had only gunner characters (including benched Eddies), none of them died, and I killed the Lord of Light on X. Mission isn't completed. Pretty sure that's happened on some of the other "trial" missions too. Has anyone else seen this?

[Jerry_LOTB]

Hey there. Any chance you were using a Trooper rental? It would be very helpful if you sent us a screenshot of the team composition you've tried this with.