One you can be admired for. The other - not so much - regardless of your reasons.

The voluntary consent of the human subject is absolutely essential. This means that the person involved should have legal capacity to give consent; should be so situated as to be able to exercise free power of choice, without the intervention of any element of force, fraud, deceit, duress, overreaching, or other ulterior form of constraint or coercion; and should have sufficient knowledge and comprehension of the elements of the subject matter involved as to enable him to make an understanding and enlightened decision.

I stress this. What you are discharged for, will matter. Weighing the ability to say "no" to coerced control over your body, as opposed to going away without leave.

The real shit situation, is putting yourself in the position where you can be rightly accused of dereliction of duty. That is not a good idea. If I'm right - and I have been so far - you'll be thanking me in the future if you follow this advice. "Q" is very much real, which means - if you make the right choice here - you could one day be testifying against the traitors that have been corrupting our young soldiers for decades. You would have the honor of being the embodiment of the genuine words, "thank you for your service." If you just ditch it? I'm afraid you won't have that opportunity.

As with my fellow civilians - I say "don't quit, let them fire you."

So here? Let them fire you for something so clear: A refusal to let them infringe upon your human rights with an experimental vaccine.