This is Stellaris Orbital Bombardment, the Mushroom of the explosion reaches far above the clouds which the highest forming are 10 miles high. Assuming its 20 miles nuke MAP puts this at 500 megatons.
100 Megatons is 6.58 kilometers tall but the explosion is easily 32 kilometers tall (Around 500 Megatons rounded) And that's just one blast not intended to destroy the planet like this
They can just access the dimension by doing a research project, Stellaris sensor tech can detect cloaking that warps reality and phases into other dimensions.
If the Tyranids can board a Craft world all this alliance has to do is drop 2 Q-Bombs tops, do this a handful of times and the Eldar would be begging the alliance for mercy.
They can't afford such losses.
1. Then that's bad, I thought they actually fielded large armies so now they definitely get stomped just as hard as the Tau LMAFO.
2. Sounds like worse versions of Guardians
3. Uhh okay? Guardians can turn off precognition PASSIVELY so that's useless in fact Paracasuality literally counteracts precognition on the virtue of existing.
So one Guardian solo's with Strand.
Cool Federation is Fielding this on the squad level.
They don't need to rely on orbital support as heavily, the orbital support is just the sprinkle on top.
They have high mobility, high fire power and good enough numbers to annihilate the Eldars like fodder.
Bring them a real threat like the Orkz or Crusades