How to easily beat this game if you're having trouble
1. First thing you need to do after spawning is sprint towards the storage room and fix the generators
2.Next is to find infirmary keys
3.Go to her when you take damage because she heals you (get some meds from infirmary if you start feeling dizzy)
4.Lastly go look for the keys (only locked room has codes in them)
(tips)
-You only need 3 codes. Once you find 3 you can start doing trial and error by inputing any number on the last number you need. Dw if she attacks you. Chances are she wont kill you.
-Once you get the exit key DON'T rush towards the exit. Bait her into the room until she's on the other side of the desk away from the door. After that you can just sprint towards the exit.