To paraphrase the Princess Bride: "I don't think those words mean what you think they do".
The "truther-activist", "sovereign citizen", and "Citizen vs. Human Being" concepts will only hurt you. It has never succeeded, to my knowledge; It has failed multiple times.
Let me tell you a little about myself to illustrate what I mean: I am a software developer (and it seems from your profile, you are at least somewhat computer inclined, so this will hopeful make sense to you). The business side of the company I work for think that myself and my team write "magic code", and having the system do whatever they ask for is just a matter of pressing enough buttons in the correct order. It totally insane, and it completely analogous to what you are propose. The court is a carefully designed system, and you don't have the power to make arbitrary changes to it. Certainly not through the "arbitrary button presses" of "legal fiction".
Some things to note
Legal fictions are never summoned. People are. Organizations are. See initial paraphrase with regards to "legal fiction". Your legal fiction has not been summoned, you have.
You will be appearing as yourself, not a straw man. I'm sorry to break it to you, but whomever you have heard this from is wrong, and in the most best case scenario, they are confusing what they want to be true for reality. If they have received any money from you in relation to this opinion, then they are almost certainly a scammer and a liar.
If you insist on going further with this nonsense, then you WILL lose, regardless of what actual facts you have. My condolences.
Now, to answer the question you asked: Yes, you can file a monition for discovery before first appearance (but not before pleading). You can file by mail, and in some jurisdictions, online. Source: https://www.nycourts.gov/courthelp/goingtocourt/caseBasics.shtml.