Age of Bronze Question

I’ve noticed that the Age of Bronze book has skirmish rules, and I was curious if anyone whose purchased the book could tell me how in-depth the skirmish rules are. Since the Skirmish Starter gives you 16 models for each side, I’m wondering if there’s a point system to it.

I actually want to build an Early Hebrew skirmish force before investing in a whole army, and I want to know if the book is worth buying.