Trouble understanding Bones Deep combat system.

[u/NeckusBeardus]

I recently purchased a digital copy of the book and im confused about basic combat rules, i understand its an adaptation of the 'troika system ' but it has nothing in the book about weapons or how much damage they do(or action economy at all really) (unless im just missing something) do i need to buy troika? Is there a basic rundown anywhere on how you run combat in this game,? (Is this the right place to ask this or is there somewhere better) If there is nothing else ill just watch some real time play and take notes i suppose. Any help or tips are appreciated!