You don't like Dead City because you're used to post-apoc ruined cities in post-apoc games? lol RAGE is a post-apoc, ruined civilisation. I thought Dead City was an epic level. Like most of the levels in the game it's pretty much a master class in design, and coupled with the fluidity and freedom in movement of the enemies - they're almost all perfect maps. The Distillery mutant battles, and the Jackal Territory with the Jackals whooping and cawing and utilising zip slides and appearing out of hatches and firing from sniper nests and distant huts - just awesome. Someone on here is talking about S.T.A.L.K.E.R? roflcoptor! No comparison.
On my first go all I could think when playing the Dead City level was "This is awesome, this is awesome, this is awesome." Along with "Doom 4 is gonna rock, Doom 4 is gonna rock, Dooom 4 is gonna rock." Because if Doom 4 is even half as well done as that it's gonna be great! Also all the blood and crap kinda evoked images of a future DOOm for me. What was odd about that level though was, at least to me, that it appeared too early in the game and that it introduced a giant mutant augmented by Authority/Ark technology. It hadn't really been apparent in anything but NPC passing conversations (rumours of people going missing) that the Authority were ultimately responsible for creating (and looking to control) the mutants.
I was fully expecting to see two of those augmented mutants as bosses in the final level, and maybe being forced into using their tracking and weapons one against the other to defeat them. In Subway Town the Chinese guy with the voice from Doom3, "I know, I built his cage!" Noburu, or something, you walk in on him talking about a thirty-foot-something, then he starts to tell you about it but thinks better of it. This is
after you've already encountered it obviously. Just seems odd to me. Like there was more story in Dead City than appeared in the final game. Retrospectively the whole level makes sense. Ark technology in a hospital crawling with mutants, and a huge giant mutant wandering around with bits of tech hanging off him. Like, "The Authority were here."
But during a first-play this revelation could easily sail over a player's head. Meaning, along with the other genuine lack of impact the Authority seem to be having on settlements, it just compounds that feeling that the Authority is just an empty suit of an antagonist and there's a chance you can't care enough to really invest in taking them down. So yeah, I agree that introducing a character you're meant to care about and either having him/her die, be captured, or transformed would have been a good way to reallly get the player involved and to set about destroying the Authority with gusto and a bit of uh, RAGE.
That's a complaint about Achievement/Trophies, not about RAGE. You only tortured yourself for hours because you were intent on bumping your gamerscore. lol There is no reason to attempt something you can't do, that many times - to the point of hating it - other than mindless achievement points. Blame M$. They should keep the achievement but drop that frickin' score nonsense. These days players check the achievements before they start the game. It's ridiculous going into a game with set guidelines provided by things that force you to play in a way you wouldn;t otherwise or to do things you wouldn't otherwise do - on your first go!
I got the 5 Finger Filet on my second go, and popped the Steam achievement (no points!) but I was playing for playing's sake, not for an achievement. Quick tip though, just focus on the dot and the line. Ignore that there are hands on the screen and that they are apparently yours, they rail against your intuition. lol
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The day/night transition thing. I don't get it. RAGE was like Assassin's Creed in that the Wasteland was a to-from area, not an expansive Fallout 3-like world to explore. Whoever playing RAGE is spending so long outside that they'd need to see day turn to night is spending altogether too long in an area of the game that isn't even a main focus of the game. If you;re hunting respawning bandits in your buggy, then sure, but wandering around looking for adventure? You should be in a town or settlement looking for a quest to send you into the shooter areas of the game. Heh ha!
Personally I think the skies look gorgeous. Better than Fallout 3's/Vegas's. Also thought it was a nice touch that I could spot the scarred moon on my first journey from the Ark in Dan's buggy, with Dan driving and talking while I was looking at the world going, *jaw on floor*
But meh, I don't spend a great deal of time looking to take note of cloud formations and how they move. So when I do look up I see epic looking skies and then go on with my day.

With reference to the Achievements/Trophy point, I made the effort to win the task, merely because it was part of the game challenge mix, nor because of the achievement for itself. However, your point on ignoring the hand and concentrating on the dot as it moved along was an excellent observation. I took the advice to heart and got it on my third try. Overall it took me less than 15 minutes, so, kudos on both the observation and your point.