Modding

I understand that the user's question is generally about the lore...
Please briefly state the plot and the timeframe, and then we can answer your question.

The question is unclear; I don't understand what the core issue is:confused:. It seems like he wants to play with these heroes somewhere, and there's a choice of which heroes to use.
But it's unclear what the purpose of choosing them is.

Now, as I understand it, the question isn't "how to do it," but "what to do."