Ok, the basics:
- Kill the ridiculous and useless "huge crowds" thing.
- Kill co-op. It didn't work, it wasn't creative, and it simply wasn't fun. Keep iterating on the interesting and creative multiplayer the series was building on before.
- A better map. The scale of Paris was often impressive, but the actual meat and potatoes of the level design itself was rote, safe, and boring.
- The combat was somehow more awful than ever. Revamp it completely (and I do mean COMPLETELY) again, or just go back to the simple stuff it had before.
- Whether through input lag or just plain wonky controls, the up/down new method of parkour did not work well. Scrap it or rework it.
There is a LOT that I need to see before I give this game a chance. Even at $12 AC Unity was a colossal disappointment.