Trying to come up with another story idea, this time during a nid invasion.
One is how would Dark Eldar react to it? I remember hearing they sometimes capture some for their arenas, but that assumes the ability to capture a few and escape. I am wondering how this would potentially work.
Another is the The Hive Mind tends to be so immense, it stops warp travel in and out of a sector. Would that include a rift from the warp by powerful beings within it to let out a chaos fleet of say Tzeentchens? Or if the two fleets enter the solar system at the same time would they halt some of the chaos ships from entering real space? If the latter I can already see a war ship getting cut in two because the hive minds just closes the tear into reality.
Abd another thought comes to mind: Daemons and other creatures born of the warp offer nothing to the Tyranids, but what of their mortal followers like chaos space marines, or those heavily mutated by the warp like Chaos Spawn or Obliterators?