So this quest is bugged and I assume it has probably been bugged since launch. However an NPC doesn’t die and you have to redo the whole mission. And my gods is it a boring mission, keep hitting 1 for awhile to kill waves of zombies, get in a clunky not fun tank, and fight some guy at the end. The phases are way longer than they should be and not very interesting at all however I assume it will never change.