Maid of Sker

This is probably the easiest A* of the bunch. I got it first try after 4/5 runs on The Long Night and In Darkness (cumulative).
Once you know your way around the hotel, in this run all you have to worry about is picking up some health drinks (since you have no weapons, there are no bullets scattered around).

Also, strong enemies die quite fast with the axe: the light guy goes down with a couple of swings, the invisible guys sometimes with only one.
Avoid fighting the fire guy, because his explosion on the final hit will harm you (no real need to kill any of those guys, just run away, they're slow).
The boss is not particularly hard if you pay attention and take your time.

Just swing your axe and run: I finished this in way less than 20 minutes (which I think is the time you need to beat to get an A*).