Dream About Plane Crash And Zombies

I was in a plane crash that was supposed to happen (I knew it would happen but the me that experienced it didn't know). I was then in an icy area on a boat all of a sudden & got to a shore. I discovered a bloody spot in the ice that I dug out & touched it and rubbed the blood through my fingers. Then I was back on the boat leaving the ice and had an instinct of understanding that the world was going to end, turned around and then zombies were starting to take over, similar to the type in world war z the movie where they were much faster & more dangerous than regularly portrayed zombies. I then was at a multi-car garage with my group (I didn't know any of them) and a man who was a mechanic but also a large, raping, murderous psychopath that I had to fight with my group. We killed him after executing a plan I don't remember organising & lost a couple of people in the group that we mourned after. I was then teleported in a blink (not a memorable transition to a new location but the best descriptor I have of the experience) near the top of a highrise building hiding & safe from the zombies but there was a problem which made myself & the group I was with need to go down stairs through & into where the zombies were. I knew we had no chance to survive & accepted that fact, but helped others try to fight & survive regardless. I don't remember dying however I know a few of the group I was with died too.