Thank you for this story. It is one that will remain with me and will be thought of and perhaps a bit quoted from time to time.
I found myself cheering and at times wiping a tear from my eyes. Few stories can do that to me these days.
The worst part of it is that I could wish for more details in every part of it just because you presented it so well.
Even the references to weapons where I felt a bit of error was made in the tech aspects were good enough that I did not find real fault. (Weapons are just something I enjoy knowing about, and have spent a life time using, and repairing etc.) The way you handle them in your stories leaves nothing to detract from the story, and focusing on other things is in its own way more effective in the telling of the story. In the end, it is never the "bow and arrow" but the Indian that makes the tool useful or not.
No need to change it as perhaps some of the newer ones work as you describe, but the small Canadian mini grenades that I have used were concussion, not fragmentation ones. Can't tell how I know, but throw one in a stream and after the boom, just take a basket and gather up your fish fry LOL. Bet rocky had a few good fish fry recipes.
Please keep writing and I will keep on enjoying your work.
Dosadi