I'm aware that tony stark can mind control centurion to create a second tornado, but is he able to continually do it to make potentially unlimited tornados?

Also when the second tornado is made who controls it when the mind control is over? I would assume centurion. He would be given a free action and it would effect both tornadoes simultaneously?

OK. I'll break it down, but I'm not quoting anything.

Centurion can make one Torpedo per game by himself.
Each Mind Controller can have him make one per game.

So for each Stark, he will be able to produce one more.

With the errata, he removes all Acceleration Tokens once a Torpedo hits, so if you've got six tokens and two Torpedoes and make an attack with one, the other one will have to charge before you can use it effectively.

Mind Control resets "once per"s per mind controller. This essentially makes it "Once per game per mind controller" for the torpedo. 1 Tony Stark could make 1 extra torpedo, 2 Tony Starks could make 2 and so on.

When multiple torpedoes are active it has been ruled that when you take the free action to move the torpedo you choose 1 and move that one. This can lead to the issue where if there are 2 torpedoes active, and two opposing characters jump on both torpedoes, only one of the torpedoes can move out of the way and the other detonates and takes all the Acceleration counters away.