Capital Knights and Capital Order Knights were already rallying towards the gate, all thanks to an inconspicuous signal that had been sent by fellow Capital Service combatants stationed at the lookout posts. This was done in order to not cause panic among the larger majority of civilians in the city.
For the most part, it worked.
The Capital Knights lead those who had been waiting to go through screening outside the gates inside promptly, and quarantined them so that they wouldn't spread news of the silent approach of an unusual enemy.
Each delay of the inevitable burst of panic counted, and the full force of the Capital Service began to mobilise, prompted to such drastic action by higher level combatants in the hierarchy who recognised the true level of the threat.
Other than Capital and Capital Order Knights, Honoured Level personnel rose up the wall, looking beyond it.