hey concerning introducing the game before the fall of rapture i thought part of the point of the game was you entering a post-apocalyptic underwater world and first being introduced to what seems to be a massive failure and then trying to figure out why it collapsed. i mean if you think going ff6 and starting the game while everything was on its way to destruction it'd be a completely different game.
its supposed to start off as a game, you know, and games mostly just place you in a random environment where things have gone to hell already without giving you any clue why or how. bioshock lets the player choose to either explore the reasons behind the collapse by collecting tape recorders or ignoring it completely, but even then the story that takes place in rapture still gives meaning without the background.
the whole point is that it's a myster fps which challenges the player to find out exactly why the collapse happened. not being fed this shit through cutscenes or whatever.