Was watching the trailer of your game - looking really good indeed! Hope you can achive your goals.
I am also planning to extend the battle mechanic of my game - together with fixing and refactoring the codes in that area.
Thanks to your post I was overcoming my weaker self and wrote this devlog which was too long on my preparation list for this upcoming Jam:
https://humane-tiger.itch.io/9-dayz/devlog/561270/devlog-post-jam-jam-7