C-virus is a new virus that has spread around the world. More than 90% of the people have gotten sick. You are a former marine who is suffering from PTSD. Find a way to escape and stay alive.
The main doors are locked, so you need to find three keys that could be anywhere in the building. There are a lot of enemies around, so you need to find a weapon with some bullets before you can protect yourself. Start looking for the keys after that.
Have fun and good luck!