Mind you, "choose at 0" is a useful tool for the DM as well. Once you've established the precedent by having the PCs capture a few enemies this way, it feels much less contrived to arrange a PC capture. Simply present them with an overwhelming force and take them down to zero HP in a hopeless fight.
Sure you could have done this in 3E with 'striking to subdue', but having the bad guys take a -4 the whole fight made it feel like you were handling them with kid gloves.
Sure you could have done this in 3E with 'striking to subdue', but having the bad guys take a -4 the whole fight made it feel like you were handling them with kid gloves.