The mutation infection

You are in a containment zone and you got to make sure that the people that ask to go in aren't infected and don't turn into a mutant zombie. The lore behind this is that a giant radiant explosion happened nobody notice then someone out of the blue gets really sick and mutates into a beast and infects everyone. There are four roles 1:security> your objective is that you figure out who's infected and you have four options to put him/her. Safe, containment, expirement, and termination. 2.scientist> most important role, your objective is finding a cure to the infection. 3.scavenger> you find food and water to survive you are the adventurer of this story. 4.infected>you have to infect everyone on the system, you can look like a human and then mutate to a big beast and infect everyone but make sure that everyone dissent catch you