Kill Team - The missing lore of Typhon

The other day I was organizing the Kill Team dossiers on my bookshelf, and at a certain point I noticed something odd.
The title of the dossier “Typhon” has nothing to do with the others—nor even with the dossier itself.
Put like that, it makes no sense, but let me explain.

Every dossier (actually, every manual or book in general) has a title that in some way foreshadows, or at least hints at, the events/content of the dossier itself.
That’s pretty obvious, right?

The title of the dossier “Hivestorm” clearly foreshadows the blitz by the T’au invasion forces on the Imperial world of Volkus.
The title of the dossier “Brutal and Cunning” points to the duality of the two forces at play—Orks and Ratlings—and their approach to the clash set in the Undermuzzle Barrens.
The same thing happens, more or less, in “Blood and Zeal”, where the followers of the god Khorne (Khorne → blood/skulls) face off against the fanatical religious zeal of the Ministorum members in the streets of the Cascabel District.

And now we get to the point: Typhon.
What does the word “Typhon” have to do with the content of the dossier?

The lore of the Typhon dossier tells, in short, of the chance discovery of Tyranid nests deep beneath Volkus by Adeptus Mechanicus exploration teams.
Obviously, these nests are defended by deadly Tyranid creatures (Raveners, which Space Marine 2 players will also know well), and a battle ensues between them and the Mechanicus forces aiming to purge the area of the xeno infestation.

For those who don’t know Tyranid lore well, it’s worth clarifying that the word “Typhon” refers to a little-known splinter fleet: Hive Fleet Typhon.
There’s no mention of it in the various Tyranid codices, only in a few Warhammer Community articles and White Dwarf issues.
It’s a peculiar fleet, known for its opportunistic strikes on planets already weakened by other conflicts (even with other Tyranid fleets) with the unusual goal of avoiding unnecessary biomass loss in battle.

“Okay, but how do you know this minor Hive Fleet Typhon is what gave the dossier its name?”
I say this because the Raveners in the dossier have EXACTLY the same color scheme as the fleet.

So, if we take it for granted that Hive Fleet Typhon gave the dossier its name, the question naturally arises:
Where is the fleet?

Because in the dossier’s lore, there’s no sign of it, and the word “Typhon” is never mentioned again.
Volkus is not invaded by the Tyranids—far from it.
The xeno presence deep underground is justified in various ways, through mere speculation: survivors from the destruction of a Space Hulk (obliterated by the Massif Ballistus centuries earlier), stowaways hidden in Ork landing craft, offspring of some mythical creature, or even that they were already underground before the capital was founded.
Basically, the authors leave it up to the reader to pick whichever explanation they like best.

But personally, something doesn’t add up for several reasons.
The title Typhon, like Leviathan in 40k, gives me the sense of something “solemn” or “grave.”
Almost a death sentence for the planet.
A title made up of a single word, which, together with Hivestorm, marks the beginning and end of a year-long cycle.
Not just a routine Mechanicus clean-up operation.

But leaving personal impressions aside, there’s something more concrete.
As I wrote in an article months ago, GW had left several hints about the Tyranids’ appearance on Volkus.
The most blatant one I found in a Grand Narrative document from last November:

Other hints were “hidden” in White Dwarf articles, especially the one dedicated to the Genestealer Cults in War Zone Chalnath (the War Zone where the planet Volkus is located – Ed.):

White Dwarf #507

All this pointed towards a large-scale fleet invasion (Typhon is explicitly mentioned in the article).
Also, the presence of a Genestealer Cult on Volkus had been “certified” by the short stories in the Core Rulebook (pages 20–33).
And it would have made perfect sense.
The Raveners could easily have been the fleet’s vanguard forces, sent to further weaken a war zone through guerrilla actions before striking decisively and safely, avoiding unnecessary biomass loss (classic Typhon style).

Instead—no.
After all the hints and teases dropped over the months, the Tyranids show up on Volkus almost by chance and out of context.

Personally, it leaves me rather puzzled.
I get the impression that the story of Volkus was originally meant to culminate exactly like this—with a full-scale Tyranid invasion—but for some unknown reason, the authors changed course, leaving the conflict’s scenario open-ended.

Honestly, I hope more material comes out about this conflict’s lore, because I think it still has a lot to tell.
But with the new season around the corner and Tomb World on the way, I’m not sure that will happen.