Vireta did not know the true situation regarding Septagint. As far as she knew, the only person who understood Septagint was Ingram, who was still unconscious. Thus, she could not answer Xiao Ran's final question.
In truth, however, aside from Ingram, there were two other people aboard the New Jior who knew about Septagint. One was Xiao Ran, who clearly knew but pretended otherwise, while the other was Gurin Mai, who had been dug out from Judica's wreckage and imprisoned.
Xiao Ran naturally knew exactly what Septagint was. On one hand, it was a mobile base, a mechanical vehicle capable of extracting Earth's resources to manufacture military equipment. Producing aircraft and tanks was child's play for it, and even manufacturing Judica was within its capabilities.
On the other hand, Septagint itself was also an enormous war machine composed of Zifield Crystal. Like Judica and White Star, it possessed shields—perhaps even sturdier than Judica's—and was capable of operating independently in combat.
The problem was that the two versions of Septagint had appeared separately in the games and the anime, and Xiao Ran could not be certain which one this was. To be safe, he assumed Septagint possessed both functions. That was why he had directly ordered Jeffrey to deploy Cruze's fleet to Earth and had even granted Cruze authorization to use MED Warheads.
Of course, whether it was the former or the latter, Xiao Ran did not think that thing could pose any threat he could not handle. Otherwise, he would not have sent merely a single fleet. Even if it could mass-produce Judicas, those unmanned units could never display the strength of an A-class mecha.
Moreover, with Shirakawa Shuu, Doctor Bian, and the others on Hades Island, Septagint should not be something Xiao Ran needed to worry too much about.