Perhaps of value to you all here is this May whitepaper that I shared elsewhere on this board some weeks ago, written by public safety professionals at the University of Colorado - Boulder. The paper is about goTenna v1 (i.e. no meshing) but likely still applicable here.
It’s called “Cost-Effective Solution for First Responder Communications and Situational Awareness” and was written by experts/professionals in wildland firefighting in particular: