Nightmares again

I had two guns in my hand. All I hear is screaming. I am standing by a very tall stair case. Looking over I see the bottom and the screams become clearer. They are children.
Jumping over the guard rail, I begin almost sliding down the stairs. Reaching the bottom I look around and see other adults looking like they didn't hear anything. There seems to be a block party looking around I suddenly find I have a group of people with me. I enter a library and find a floor latch open before I can even think about going down it an explosion happens. I hear more children screaming but I am forced to leave the building. Looking to my right there is another building almost in the shape of bleachers.
Once I climb up to the top I find there is a ceiling almost forcing you to lay down the woman next to me has a sniper rifle pointing to the Library's roof.
"Going to kill them. Going to kill them all."
I had a feeling she was talking about everyone in that library. I took a older of binoculars and look to the library. The focus was fuzzy but I can make out a white man in a white suit there are two wolves by his side.
"I started this. I have taken over! Its all mine."
Dropping the scopes I look over the side of the building. People are puking blood and charging at kids and adults.
I jump over and start shooting. A woman goes down and I find myself with no gun. I start trying to shoot with anything but they keep coming at me. They are people. Sick rabid people… a bigger one grabs me and I punch him in the face then grab him and smash his head against the wall until it feels like a broken hardboiled egg in my hand.
I turn and a skinnier woman bites my hand. I back hand slap her away from me and my head begins spinning. I vomit and grab a pipe and break her neck with it. One of my friends is one of the infected. He bites another in my group and I watch as he fights it of his eyes become yellow and skin gray but he quickly goes back to killing.
More are coming. I am puking more. My sight goes blurry.