I realize I am late to the game but I have been grinding Gambit the last few weeks for Exit Strategy and I have also been finally getting around to completing the Lumina Quest. I am getting increasingly more frustrated with the step "invader denied" I have literally watched an invader spawn in and kill him on the spot and I am not getting this part of the quest completed. I attached a video for one of my most recent kills. Anyone else having this problem? About to give up on the gun.