I really liked the cutscene in the beginning, such as the concept and the atmosphere of the game.
I think you did really well to tell a story!
It was fun to play and ran very smooth.
I heard the indicator for survivors, but it was still a bit difficult to locate them at times.
Overall, I think you did a great job of implementing the theme and creating a fun game. I really wanted to find all the survivors to see what would happen :)