Set Harth wrote:
The torpedoes were armed, that's how they were able to make them go off inside the Vengeance. They always had that capability.
We really don't know that for sure. They could have easily put explosives where the cryo-tubes were. Even if they still had weapons payload, my scenario still works out.
Nope. The torpedoes had active warheads. They weren't added. Remember Spock briefing McCoy on his plan:
Dr. McCoy, you inadvertently activated a torpedo, could you replicate the process?
Why the hell would I want to do that?
Can you or can you not?
Dammit, man. I'm a doctor, not a torpedo technician.
The fact that you're doctor is precisely why I need you to listen very carefully.
Verdict: Khan stuffed his people inside torpedoes with live warheads.