Zombies

I have this recurring nightmare since I was about 12, that zombies attack our trailer. Momma is almost always gone, but Roger, Azrael and I are here (I have always dreamed she was there, even before I had her). They're smart zombies. They use guns, and try to break in the doors. One of them's name is Charlie. He was originially with us, then he tries to run for it and gets infected. I grab Azrael and go for the backdoor right as they are breaking in the door, and one of them is outside, and that is when I wake up.