I'm asking about available technology because the Flood danger is exponential compared to the technology they have. The more they start with the faster they acquire more technology and exponentially become more dangerous. If they can unlock Reed/Doom tech then they'll win. If they start with Shield files then they should at least know enough to have a good strategy going forward.
If the Flodd access a time machine or Infinity Gem then I'd say it's over.
If the gravemind get's knowledge on this, they will go after it. the flood can use any kind of technology they touch, because they are organic computer like I.A. They will use everything at their disposal to spread.
Has there been a case of The Flood being able to devistate a race/world similar to the one in this scenario?
Or are its prime foes the Spartans/Arbiters? just asking BTW :)
Also going back to the magic question, how do they even start trying to tackle a foe like Ghost Rider? Because imo Abstracts wont be needed in this encounter.
Well, if i allowed people like Ghost_Rider, the Flood would trow infected super heroes at him. Or do anything possible against him to defeat him.
Also, Chief even with it's armor was almost infected by a Spore, but Cortana protected him and made an armor upgrade for future examples. So people like Iron man can be infected even with their armor.