I honestly can't recommend this. It's very difficult as there are constant infected and tanks spawning, you can die very easily. It's quite short and not allot to do. There's no navmesh upstairs so the bots don't follow you up. Space is very cramped and no room to move around to get away from tanks. The map design was nice though. The concept was fine, but poorly executed in my opinion. That's about it. Not very good.