Warhammer 40: From the League of Humans to Warhammer

[Stellaris + Warhammer + Human Alliance] [Level 10 Scientist] [Equivalent to extremely high research capabilities, plus handcrafting skills far exceeding Level 8 Fitter, capable of handcrafting anything]
When human civilization broke free from propulsion and reached the stars, mastering faster-than-light travel marked the beginning of the interstellar age.
However, the situation is often different in different universes. In StarCraft, you need to travel faster than the speed of light to join the ranks of the interstellar empires, but Warhammer is different.
The Federation of Humans has not mastered faster-than-light travel; it can only do so through subspace.
What does it mean that a Level 10 scientist from the Starkind Alliance has arrived in Warhammer?
If I were just a scientist, with only the insignificant power of a mere 3 million tons in one hand.
but!
Do you see my ability to build a network in just a few days, or at most two months?
Do you see those tens of millions of Space Marines and the overwhelming fleet behind me?
Chaos? Tell me, how many fleets does he have?
It's just a large power bank.
Humanity will surely fulfill its divinely ordained destiny and conquer the galaxy.
All aliens must either submit to humanity or be eradicated. They may not understand, but they must obey!