How to export an animated object to virtual studio TV environment?

Hello
We have a project for TV station, we have created weather phenomenon elements, like stromcloud and ice-crystals and so on.

Now we are done with the art direction and animation, and customer is pleased. We must next export all these animated elements as unreal exe project to virtual studio setup for the TV station.

How do we export these, so they can use them in realtime virtual studio like this:

How do we key out the object, so it can be composed on top of motion controlled cameras?

Pekka Varis

Finland