Need someones help here
im trying to write a persudo FMA/steampunk inspired game where my players are essentially playing Ishvalans while being invaded by Amestris (Evil guys)
I'v got two things planned
A) that my players need to destroy a mcguffin that is too powerful for anyone to use, a sword that all intensive purposes is Soul Edge.
B) [The issue i need help with] The "Amerstrians" are sorta occupying the state. Their plan is to infiltrate important ranks under the guide of Knights then when the time is right they stage a coup when everything is set.
Why else would the Amerstrians be there? is being there to hunt down resources better enough? The Amestrians have airships, technologically advanced and even helped the Ishvalans somewhat. I just dont want my players to see that "this is it?" im confident they wont but i'd like some feeback