Hello Saint,
From what I understand of legal blindness, you still have some kind of vision. From what I can see from your spelling, I don't think you'd have too big of a problem fitting in here
This is why we have our 4 day ITB training pipeline, for you to decide if you can play ArmA III in our manner of gameplay
So give it a go anyway, sign up and go from there. I think the infantry has the best atmosphere for you, since you have more local communication and less stressful than other supporting elements in which you're a larger target, communication overcomes the biggest issues.
https://15thmeu.net/index.php?/information-pages/records/joining-requirements/
These are our joining requirements otherwise, as long as you are confident you can play your role, you should be fine
We've accommodated vocally mute people in the past to give perspective
Not to mention the numerous amount of family-men and women