Zen wants to know what you plan to do with the Smiling Moon after your experiment. Destroy it? I had suggested maybe having Zen return later on with some new parts to repair his ship. I don't know. You may want to talk to Zen for more details. He's stuck on what to do. Also, I've posted. Tsviets has surrendered (and killed Ken for being incompetent)
I've figured out the best actions that would fit with Tsviets paranoid mentality. He'd forfeit the sample but sneak a thermal dentonator inside it as well. I'm guessing Yuki could defend herself from the blast.
Still, if I do end up signing Tsviets up for Animus (if he lives that is), I get the feeling he'll be in a load of trouble for what he did to Yuki.