if you want to get the true ending then it will be a little harder because you have to get paranormal to 350 first you have to get coding to 1000 and then missing persons to 1000 after you have found the USB in the VIP room (just 350 so you can see Lexy and get the ward from the shop) but right after that you need to max out both coding and missing persons (i recommend doing coding fully first so you can decrypt the USB you find in the VIP room on night 10 I think and then missing persons so you can stop Marie from killing you when you talk to upgraded Freeni)