from 'Willpower for NPCs'
The GM should consider carefully when to use kin and profession talents against PCs, only doing so when dramatically appropriate.
Most simple NPCs doesn't have talents and even though kin talents aren't usually listed in the talent list for NPCs, this is usually a good advice, to also skip kin talents for these NPCs. Talents and pushing can be very powerful and for simple NPCs, you shouldn't use that.
For the Unbreakable talent. It can only be used when you are broken, not when you become broken (there is a difference). This means that a player can use coup de grace on him or just grapple and hold him. The orc may not want to use it immediately. The talent doesn't give you any free actions and going back up with one point will most likely just giving him another crit, he might give up (for now). Just because he is an orc doesn't mean he needs to be stupid.