Replaying on 'Nightmare' skill level, but I am actually saving my games often it's just too hard not to

Pretty frantic, and fun. I am not bothering to read through the journal / PDA entries, unless I need something for a locker code.

With your health ticking down to 25 all of the time, you have no choice but to run'n'gun. Quite a different experience.

The monster events actually scare me a bit more now, because everything is happening so fast.