Oh yeah like rowain said, I found it funny you're a BIG DADDY but die in 2 hits to splicers.
But I know why they made it so you couldn't backtrack. They really wanted it story driven and there are lots of parts in the game where buildings EXPLODE so going back and having it all pretty again wouldn't make sense. It's also dumb though because secrets are littered everywhere in this game (imagine if you couldn't backtrack in castlevania or metroid). Sofia Lamb is dumb, but I think Sinclair is definitely one of the better characters in the game.
Also if you want the game to be a cakewalk, upgrade your drill and kill all the bosses with it. Big sisters will die in 15 seconds.
Yes, the problem here is that the 360 version has a ton of achievements that are completely and VERY EASILY missed because they are level and enemy specific. There is one achievement that requires you research all enemy types to max and you only get the camera in like the fourth area and by the fifth you stop encountering Thuggish Splicers. For the rest of the game. It's just all Spider, Houdini, and Leadhead Splicers. So if you don't max research on Thuggish then you just outright miss that achievement. Diaries, Power to the People machines (which are pretty dumb and boring, wish they'd put effort into the weapon upgrade system) etc are all super missable if you don't explore each level COMPLETELY before moving on. And this can get really frustrating when you're bored of a level but don't want to move along because you know you can't come back. Neophyte, you have a point except that if I'm remembering correctly, the only level that "blows up" is
Siren's Alley after you
activate the Pumping station. Alright, so if you wanna make a setpiece like that, then don't fill it with missable stuff, and instead allow us to travel to all the other places as much as we want. I think like you said it was meant to be story driven, that you have that sense of urgency to rescue Eleanor and all other concerns are secondary, except that I honestly never gave a shit about Eleanor and it was just dumb from a gameplay perspective. I was just frustrated that they made the sequel even more linear than the original.
Haha, just look at their bulletpoint for the game:
New Game Mechanics - BioShock 2 contains many new gameplay mechanics. Just a few of these are: the ability to wield plasmids and weapons simultaneously; flashback missions detailing how you became the Big Daddy; the ability to walk outside the airlocks of Rapture to discover new play areas, and many more.
a) There are no "flashback missions", just a few moments where you're forced to stand still and listen to a voice over from Eleanor about yourself.
b) you can walk outside airlocks, but it's not optional, and there's nothing to explore or discover except the next part of the level that you HAVE to go to. And I can count the number of times with one hand!!!
It sounds like I'm being really harsh on the game. Well, I am, it doesn't just sound like that. But what can I say, I still beat the damn thing and I had fun for some of the time. Part of the reason I stuck with it though was to see if the narrative ever really developed and it doesn't. SPOILER ALERT: it never goes anywhere, no one does anything, and then it ends.