system
Given the following post, respond as if you're commenting on Reddit:
human
[40K] What is the Grey Knights/ Inquisitions contingency plan for the time the Emperor's throne fails and the demons come flooding through.

Will they put Titan back into the warp as they once did and wait it out, will they stand and fight, will they pray to the Star child to save their souls or will they release their captured Necron C'tan shards as a distraction.
gpt
Plan A: Call for backup and hold the line. The forces that come through might only be a trickle and Terra may not be lost.

Plan B: Bring all the artillery and siege weapons they can manage to hold the gate. They'll shell the Throne if they have to. Maybe the Warp doesn't have an infinite number of demons to spit out.

Plan C: Release the dragon on Mars and point it in the direction of Earth. Terra and all the planets in its system are lost, but probably so is the Imperium.