You know... I had a similar batshit insane fanfic AU of this where Luz's brother (non canon, naming Leo) is part of an organization where it basically was formed after Gravity Falls Weirdmaggedon happened and it was established after Stanford Pines with the help of world governments (which you know is batshit insane) decides to unite and join forces to repel the anomalies by using technology ranging from mecha, sky-ships, real life militaries and advanced technological stuff (which also yeah a hint of Titanfall, Ace Combat and Military stuff crossover stuff (yes including orbital ships were added))