Pretty much the same as you, except that I cannot go >200 feet without running out of air. And if my heart rate goes up into the fightorflight zone I am automatically going to get zapped to keep me from going into v-tach (the one that kills you DRT).
A lot of my tactics revolve around the "3 stupids" rule. Trying to stay aware of who is near me and what they are doing, without looking like a paranoid freak. Travelling in a wheelchair (OK, powerchair) makes retention that much easier - someone is going to need really skinny arms to get to my gun.
For folks like us, the biggest thing to deal with is that Rules of Engagement are ging to be quite different than those for most of the rest of the world. Force disparity for me can mean a 5-year old. What is imminent danger for me may be transitioning from Conditiuon Yellow to Condition Orange for the rest of you. I forget the legalese for it, but the BGs are going to have to take us as they find us. There is no requirement that we inform them of our disabilities or the different ROE we operate under.
While mounting a defense of self defence may be a bit more involved for us, it also may be easier based on the "sympathy vote" - unless we get accused of having gone out using our disability as an excuse to waste some poor innocent young man on his way home from choir practice.
The biggest thing for me is to be able to practice when I'm in the chair. That old saying of "run what ya brung" gets a bit more complicated.