I downloaded KeyTweak and mapped the arrow keys to WASD.I finished the game.In the hospital, you need to interact with the double doors where the infected are knocking. After that, go back and a cutscene will play. The game continues and you will be close to completing it.
You should not enter the door near where the infected are knocking, you need to interact with the door where the infected are knocking. After that, go back and a cutscene will play. The game continues and you will be close to completing it.