I would say this is more of making himself unpredictable. They may very well have prepared their "ammo" for monday but now have to reconsider everything now that hes releasing the info in legal filings instead. But to answer your question, their "ammo" is sleeper agents, media campaigns, false flags, it takes resources, structure, and time to get everything ready to go without causing major suspicion. By frequently changing his mind on how he releases damning info they are constantly scrambling and on hard defense.