I dont mind that ada goes through the same levels in separate ways that much but ı still agree that her scenario can be more unique. I would like it if they would make her story more similar to her campaign in re6 with the way locations are travelled through. That game also reuses locations from other 3 campaigns more than others for ada's campaign but ı personally like that decision since the campaigns connect to each other even more and more importantly, ada goes through those locations in a more unique way than separate ways in re4.Maybe as an alternate costume but it looks like her RE:4 one will be more like her Mercenaries outfit and look more tactical. As cool as Separate Ways was, there were a lot of reused areas so I am hoping they put more effort into adding different areas for her campaign.
I really like submarine in her 1st chapter which is a very unique location that's also connected to leon's campaign.
In 2nd chapter; she goes through the same locations leon and helena go but she still takes new paths at certain points. Like going through that gate by unlocking it with pieces of the family logo crest. After that; her locations are rehashed from leon's campaign but ı really like that due to campaign connection being used in a more unique way.
In 3rd chapter; she goes through the same locations in chris and jake's campaigns but she still takes new paths. I like the chase part with ubistvo since it explains why the monster caused damage to environment as shown in jake's campaign. Her campaign connects to jake's campaign too at the end as well as to chris' campaign when they were chasing carla which ada notices.
In 4th chapter; she goes through the same locations in chris' campaign but she still takes new paths. It's also possible to get caught to chris as an unique game over as well. Her fight with carla's mutant form also explains why during rasklapanje part in chris' campaign; the ship can shake randomly.
In 5th chapter; she helps leon and helena during their also final chapter but while being inside the chopper 1st. There are gaps before the intersection parts which show her taking new paths. The campaign connection parts here are the best for me in her campaign personally, especially after she leaves the chopper to leon and helena. And the very end section is even more amazing.
I can go on but ı really love re6 and ıdk if re engine 4 will take inspirations from it but if it will happen in a well executed way like that game, ı would be very happy.