Come on guys, let's keep it civil here...
As far as story goes, Carthage made the kill list pretty early in the fiction viewer. The dreamscape and discussion on bringing the Carthage down seemed important and very Laporte centered. The fact that it was 'take 2' on the Carthage was even lampshaded.
I remember exactly one passing mention in the Tenebra fiction viewer (the kill list, as you said) before HFH itself. Hardly a climactic buildup...
Well I think you are wrong.
You agree that BP has taken a different direction, or you disagree that this is not a good thing?
It seems absurd to suggest that none of the missions in Act 3 have buildup. Mission 18 is the next mission in the Gef arc that began back in 'For the Wrong Reasons' and continued in 'What Binds Us' and 'Deals in Shadows'. Mission 18 directly causes Mission 20, the Kostadin Cell's last-ditch doomsday effort to drive humanity off Earth - an attack that's been foreshadowed since R1 if you were paying attention.
Mission 19 is the next mission in the 'mole/countermole' arc that's been running since 'The Plunder', particularly prominent in 'Deals in Shadows', 'Pawns', and 'Delenda Est'.
Mission 21 sees the player inserted into the ongoing broader war effort - an 'arc' that barely needs description.
Mission 22/23 are the next missions in the Ken arc that began in 'Ken'.
Does it feel disjointed to get just a couple more missions in each arc? Maybe.
Yes, it felt very disjointed. Laporte seemed to be jumping all over the place. I can see how the missions carry on arcs from previous acts - but I think Tenebra crammed too many arcs into a too compact whole. It feels like chaos.
But we need to see how the Fedayeen alter each arc. Laporte has moved from a place of learning into a place of power over the war - but not yet mastery over herself. Act 3 is practically Laporte Strikes Back - she makes a decisive action in the context of each arc in which she was formerly powerless, but she makes no progress at all in the areas where she was once powerful: her relationship to Simms and to the core ideals of the Federation.
It felt like she was playing Deus Ex Machina in every single story arc. Come on, I'm sure the Fedayeen have more pilots... And she didn't fail a single mission. The entirety of Tenebra didn't have a single setback. Okay, CASSANDRA is good, but do the operators really never make a mistake? Misinterpret some data, under- or overestimate some parameter, spill coffee on the keyboard?
And if the Fedayeen are really *that* good at Deus Ex Machinaing (I'll buy it, given the power of their mainframe), why hasn't there been the slightest hint of their influence in previous acts? Things like destroying the Kostadin Cell and a joint op with Jupiter Fleet would be widely discussed across the Federation, so why didn't Noemi get any rumour of their actions before? I think it would have laid a better groundwork to support the Fedayeen's major strikes in Tenebra.
Everything in Tenebra is about trading humanity for tactical power and exigency. Humanity is subsumed by functionality and the machinery of war. The Fedayeen wingmen each develop as a mirror of some part of Laporte that's broken. The Masyaf is a ship populated by alienated shark people. They're the antithesis of the Wargods.
If you felt that Act 3 gave up something crucial about Blue Planet in favor of wild exploration - consider that in light of what's happening here. What is Laporte learning, and what has she forgotten in the process?
Well that went completely over my head in the campaign... From the very first mission, Noemi felt a completely different character from who she was in previous acts. Instead of a humane, moral character we suddenly get an emotionless killer, with hardly any time for the player to 'grow with' the change. Come to think of it, that may be one of the reasons why Tenebra felt so disjoint... We're not playing Noemi anymore.
The Gef attack in 'One Future' was outlined since well before Act 1 ever released. They're some of the few clues in the story that the fanbase never picked up on or connected.
What were the clues? The fact that nobody picked up on them could be an indication that they were hidden too deep... To me, the Gefs really felt like a bunch of space pirates (with ideals, but still) thrifting and scraping to survive, like docfu said. Playing nice to whoever pays/threatens them enough (in this case, Steele), just in order to survive out there. I had no idea they had the knowledge or resources to subspace-jump a solid rock that easily shadows a Sathanas, and especially that they were willing to wipe out a good fraction of humanity to accomplish their ideals! Scavenging convoys for supplies, harassing the military, sure, but
destroying Earth - that was a surprise to me.
Btw, I don't really get why people are getting all offensive about the new gameplay mechanics and features. If Tenebra had Noemi flying with the Fedayeen and not have the new gameplay mechanics, it would stick out like a sore thumb. You are special forces for petes sake! You are supposed to do stuff that normal pilots can't. Also, haven't we all got outright bored with the standard FS mission styles and gameplay mechanics? The BP team imo have breathed new life into the Space Combat Sim genre...And its my earnest request that the BP team do not return to pure FS style gameplay...please!
"Hey guys,

here. We have some exciting news for you: we finally got the go-ahead to develop FreeSpace 3! But, eh, since the space sim genre is dead and all, it's gonna be a first-person shooter."
Come on, that's absurd. New gameplay mechanics are only fun up to a point. Tenebra's assassination mission was cool, and I enjoy mods like Vassago's Dirge and Between the Ashes - they capitalize on what FreeSpace does well, and give an interesting new twist to it. But if I want to command my own space fleet or play turret defence, there are and there always will be games out there that do a much better job at it (no offense to the devs). Rather than trying to be a jack-of-all-trades, I think it would be wiser to focus on being the king of space sim.
Reading this thread makes me sick. Singing praise at the snore feat that was WiH r1 and hating on Tenebra because it had the audacity to be FUN instead of force feeding you walls if text. You people disgust me.
Different people have different opinions of what a good mod should be like, you as an experienced modder should know that

What were boring walls of text to you was immersive storytelling to me, and what was fun gameplay to you was quite uninteresting to me. If I have to choose between either playing Pac-Man or Tetris for three hours, or watching a good movie for the same amount of time, I'd go for the movie anytime. And I respect your opinion if you wouldn't.