In your video I see you put the prisoners in the green spot. They dont wake in that place? Asking because handcuff is a pain.
They do wake up. If I decide to run away, green spot stuff will come with me, that's all.
Yeah, handcuffs are a bit of a pain and do not work 100% on very strong captures, like zombies. As for keeping prisoners down, other options are not much less painful, though. Smoke is probably my favourite, but has it's problems.
First, you can just forget about most early KOd cultists - they don't wake up too often. Especially, if you use baton rounds - they don't just stun, but reduce health, and hurt prisoners can't overcome stun easily. The ones that do wake up, will fight. But when there isn't anyone non-stunned left, they will automatically surrender (if they can surrender. Most humans can, except dagon priests and up).
Second, staying in smoke stuns a little - e.g. smoke grenades. You can use this to keep most of your prisoners stunned. Though, if you take too long and prisoner is badly hurt, you will overstun them (broken heart insted of Zs) and they will begin to lose health too.
Third, overstunned ones pretty much never wake up. You can shoot downed targets, including with tasers, to overstun (or finish off) them. If you used only tasers, you'll have ~10-15 turns I guess before prisoner is dead.