You need an attorney.
Before you do something that will destroy your future career in the Army, you need to talk to a competent attorney that can help with your situation. You are in a precarious situation because it is a charge and not a conviction, but if you do not handle it correctly, this will be a problem. If you are assigned a public defender, you need to hire a competent attorney to resolve this matter. You will need advice on how to properly handle this with your recruiter and the Army and disclosing information on Avvo is not the way to handle this.
As you are well aware, you have reporting requirements to your recruiter on matters such as this. Furthermore, you probably applied for a security clearance (there are very few jobs in the military that do not require a clearance). This is information that is relevant to the clearance and they will find out if this is not taken care of.
I doubt you need more reasons to get an attorney.