Master, get out of danger first! Fight Healer crawler - modified monsters carry potion device on their body that can heal the surrounding mutants. You need to eliminate them first. You'd better take down that healer monster first. Tap on that monster and point your gun at it to attack. I'm your intelligent assistant. During your come, an unknown virus outbreak hit us and it has spread to every corner of the world. You have seen these who got infected and they have occupied our city. The situation is way worse than i thought. Let's find a safe place first, it's too dangerous here.