Nathan nodded as he walked over to her. "I have enough ammo to last me a good while...though its not infinite. I'll take point if you watch my back." He said before kicking the door open. The staircase from the roof to the last floor of the building was clear. Walking down the stairs, he looked through a small window in the door and saw the zombies. "Of course there would be so many zombies in the hospital. This is like a breeding ground for them. Watch my back, alright?"