Also got details on Nightmare difficulty.
So for those who want to know how differently Nightmare changes things, same anonymous person who mentioned the time stuff has been giving me a list of changes they've observed so far. Of course, don't read on if you don't want to spoil Nightmare difficulty changes for yourself.
-Picking up Ammo packs give you less, like Handgun ammo pick-ups give you 7 bullets rather than 10.
-You get the Magnum very early, get it at the Subway at the beginning.
-Zombies move faster.
-Zombies do the "REmake 2 thing" where their AI for lunging changes on which difficulty you're playing on. On Normal they lunge once, on Hardcore they "double-lunge", on Nightmare they "double-lunge" and are more twitchy and get-up and recover when anything they may be stunned by.
-There are more enemies generally. Like the beginning alley before entering the place with the Toy Store, there are now 5 zombies rather than 2, in the Drain Deimos section here's a lot more of them and they're more aggressive, etc. This is rather consistent.
-The "window dressing" zombies behind gates who normally can't attack you are replaced with Parasite Zombies, who have a distance attack so they can attack you now.
-A LOT more Parasite Zombies in general.
-Moon Doughnuts route is closed when you go through rather than the Alley path, forcing you down the Alley path (on normal difficulties, force you through Doughnuts).
-Nemesis AI is more relentless and harder to down.
-In the Sewers, Hunter Gamma's positions are changed so you fight more than one at a time.
-In RPD there is a lot more Lickers, and Pale Heads from the Hospital appear at the end of RPD, and even Pale Heads with Parasite Heads (which are new).
-Lickers appear in the Hospital as well and aren't just locked to RPD now.
-Some later game sections with Dogs, the Dogs have been replaced with Hunter Gammas.
-NEST 2 has more Pale Heads, less Parasites though.
-The final couple Nemesis bosses are a lot more aggressive and give a much smaller window to attack them, making the fights a LOT harder.