A couple of questions involving Silver Centurion and Tony Stark:

If I use Mind Control on MY Silver Centurion using MY Tony Stark...

a) ...wil I be able to launch another torpedo?
b) ...do I get to activate another free action to put an acceleration counteron. The torpedo?

Bonus
How about if my opponent Mind Controls my Silver Centurion?

A) Yes, You can activate a game effect that is once per game, per mind controller.

B)Not on the same action that you would use to create another torpedo. Remember Mind Control only gives you one action, whether that is a power action or a free action.

Bonus: They could MC your Silver Centurion and create a torpedo, but they wouldn't be able to do anything with it after it was created. It would be a dud.