I am posting this suggestion following the last blog concerning the late game. I always think PZ would be perfect if it was possible late in the game to be able to make a vaccine. We would have to capture zombies in our laboratory, do tests, analyses, and find samples in the map as well as difficult-to-obtain materials. And then we would have to treat all the zombies and transfer them to an outside area. It could also be an external organization that places orders with a satellite and needs to provide equipment for delivery on time.