They should have axed ghost survivors and finished B scenario as a free update. It's almost there, it just gets awkwardly dropped by the end of the police station.
This is something I never see talked about that I've always felt it. The RPD segment is perfectly done. You're allowed to explore for awhile, get accustomed to the map and then they introduce Mr X to put that to the test. All the puzzles and design elements are great in that. Although I found it annoying that the station is without any lights for the most part.
But once you leave, it feels very phoned in. That intricate scenario design magic is completely gone. I can't quite put my finger on why, but it just does to me. Kendo's shop appearing mid game feels very weird, where as if you watch the beta footage, it looked like it was going to be a 1:1 remake from the original. I hated you just run 30 seconds to the RPD and you're done the streets section, and 2nd run starts you immediately there.
The sewers are just okay, but I think the whole G mutant nest thing is stupid. I don't like the idea that it became just a regular enemy and the spiders were removed. Relegating the giant alligator to a long QTE is fucking stupid. Yes, the original was lackluster. But they could've done something more than they did. The G2 fight is just okay, but that giant hole you fight him in... like where and what the fuck was that?
No Marshaling Yard really pissed me off. It's not a large era, but the train elevator is one of the most iconic visuals from the original.
Lab was dumb. Real Anderson RE movie shit with the nonsense mainshaft, and the northern section is an empty void with endless columns supporting a entirely empty area for reasons. Lab felt really tiny and not enough enemy placements, specifically Lickers. And evolved Lickers being removed doesn't make any sense.
G3, G4, G5 fights are okay I guess. But yeah, Ghost Survivors is a worthless mode that should've been the EX battle mode or some type of Mercs mode in the station.
B scenario. Zapping system. EX battle game. Marshaling Yard. Independent boss fights in each campaign. Secret fingerprint room in the lab. No spiders. No evolved Lickers.
Not quite as much as RE3 but B scenario being phoned in really hard is the most egregious thing it did.
I may as well talk about RE3R too.
The entirety of the Uptown section beyond a mere glimpse of the factory Dario is hiding in and the bar you meet Brad in. You don't go to the RPD with Jill at all, even though the cutscene makes it look like they're walking there after Carlos downs Nosesis. And immediately following, you're already at the fucking train which you wouldn't get to in a first time playthrough for probably an hour and this is maybe 10-15 minutes into the game.
The Downtown area is entirely reworked and vaguely hints at areas in the original. Such as the children's chalk drawing on the ground in one of the alleys but in the original it's in the Uptown behind the bar. The Pharmacy stands in the for Sales office but you're basically in and out of it in the remake.
The Press building is entirely removed. City Hall is removed. The restaurant is just a middle area that has no significance beyond that IIRC. The original even had a basement you can go into which is gone in the remake. Parking lot only appears in the intro. Gas station is only in a cutscene.
The Power Station is a Drain Demos hive, and they themselves are very underscaled and are only a minor nuisance. Brain Suckers removed. Spiders removed. Grave Digger removed. Park removed. Dead Factory removed. Clock Tower is in it but only exists as a setpiece to kill Dogesis.
Hospital is there, and done much better. But the whole zombie siege at the end is cringe PS2 level shit without stacking zombie bodies. Lab entrance is an obnoxious and obvious secret elevator thing in the Hospital basement. Which ends up being reused assets from RE2R and vaguely hints at the disposal facility of the Dead Factory.
And, no Mercs mode and epilogues.
I think that's everything. Beyond that, is many inconsistencies with the lore and just idiotic characterization decisions.
EDIT I forgot that the Boutique is gone, and several of the alternative outfits.