PC's falling unconcious vs dying is clearly dileanted in rules. Same is not so for NPC's/monsters.
Has anyone found particular rules or approaches to deciding (a) if any fallen foes are not actually dead; (b) trying to subdue foes and not kill them.
For the latter, I think using entangling weapons etc. is fairly clear avenue (don't drop someone with your halberd and Thunderous Blow and then ask if they're still alive to question).