The trouble was that if you had many silos, when you built a new one, it got filled with tiberium from other silos and I think that when you sold the tiberium w

The trouble was that if you had many silos, when you built a new one, it got filled with tiberium from other silos and I think that when you sold the tiberium would get redistributed back to the other silos. Anyway, all I remember is that you could generate free money just by buying and selling silos in a loop (if you already had many silos and they were full).