I’m not sure how I feel about including an armed security expert in your emergency relief crew. That’s not how Médecins Sans Frontières or Team Rubicon roll. I would know, I’m a Greyshirt. It’s specifically disallowed to bring firearms or other weapons to ops, and it can get you permanently banned from the program.
I think your RPG would be more accurate, unique, and challenging to completely strip out all combat mechanics. It’s not needed in genuine emergency or disaster relief. Only during security (military/police) missions, which is not what this game is about. Honestly, I think that’s a big trip-up that is preventing me from appreciating something I otherwise probably would.